Home / 728,408-1,140,136

Finding the Third Proportional to 728,408 and 1,140,136

Calculator

Solution

The third proportional to 728,408 and 1,140,136 is: 1,784,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,408 : 1,140,136 = 1,140,136 : x
  2. Step 2: Convert to fraction form
    728,408/1,140,136 = 1,140,136/x
  3. Step 3: Cross multiply
    728,408x = 1,140,136 × 1,140,136
  4. Step 4: Simplify right side
    728,408x = 1,299,910,098,496
  5. Step 5: Solve for x
    x = 1,299,910,098,496/728,408
  6. Step 6: Final answer
    x = 1,784,590.64

Related Problems

Find third proportional to 364,204 and 570,068
Half scale
Find third proportional to 1,456,816 and 2,280,272
Double scale
Find third proportional to 728,410 and 1,140,139
Similar ratio
Find third proportional to 1,092,612 and 1,710,204
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.