Home / 492.75-721.50

Finding the Third Proportional to 492.75 and 721.50

Calculator

Solution

The third proportional to 492.75 and 721.50 is: 1,056.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.75 : 721.50 = 721.50 : x
  2. Step 2: Convert to fraction form
    492.75/721.50 = 721.50/x
  3. Step 3: Cross multiply
    492.75x = 721.50 × 721.50
  4. Step 4: Simplify right side
    492.75x = 520,562.25
  5. Step 5: Solve for x
    x = 520,562.25/492.75
  6. Step 6: Final answer
    x = 1,056.44

Related Problems

Find third proportional to 246.38 and 360.75
Half scale
Find third proportional to 985.50 and 1,443
Double scale
Find third proportional to 495 and 724
Similar ratio
Find third proportional to 739.13 and 1,082.25
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.