UPDATE 1-On Assignment Q3 profit slides

*Q3 EPS $0.04 vs $0.19 year ago

* Q3 rev drops 39 pct

* Sees Q4 EPS $0.00-$0.03 vs est $0.01

* Sees Q4 rev $93 mln-$98 vs est $98.8 mln

Nov 2 (Reuters) - Diversified staffing company On Assignment Inc's (ASGN.O) posted a 78 percent drop in quarterly profit, hurt by lower revenue at most of its segments, and forecast fourth-quarter sales below estimates.

The company expects per-share earnings of breakeven to 3 cents a share on revenue of $93 million to $98 million, the company said in a statement.

Analysts were expecting earnings of 1 cent on revenue of $98.8 million.

For the third quarter, the company reported net income of $1.5 million, or 4 cents a share, compared with $6.9 million, or 19 cents a share, a year ago.

Revenue for the quarter fell 39 percent to $98.1 million.

Analysts were expecting earnings of 1 cent a share, before items, on revenue of $98.1 million, according to Thomson Reuters I/B/E/S.

Shares of the company closed at $6.05 Monday on Nasdaq. (Reporting by Fareha Khan in Bangalore; Editing by Anil D'Silva)