Smaller = 1 unit, larger = 3 units. Together they make 4 units = 744.

Smaller1Larger111744

Plain numbers are given; italic underlined numbers are worked out.

  1. 4 units → 744
  2. 1 unit (smaller) → 744 ÷ 4 = 186

The smaller number is 186.

Check: 186 + 558 = 744 and 558 = 3 × 186. ✓