Home / 724,691.60-1,087,037.40-455,253.20

Finding the Fourth Proportional to 724,691.60, 1,087,037.40 and 455,253.20

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Solution

The fourth proportional to 724,691.60, 1,087,037.40 and 455,253.20 is: 682,879.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,691.60 : 1,087,037.40 = 455,253.20 : x
  2. Step 2: Convert to fraction form
    724,691.60/1,087,037.40 = 455,253.20/x
  3. Step 3: Cross multiply
    724,691.60x = 1,087,037.40 × 455,253.20
  4. Step 4: Simplify right side
    724,691.60x = 494,877,254,869.68
  5. Step 5: Solve for x
    x = 494,877,254,869.68/724,691.60
  6. Step 6: Final answer
    x = 682,879.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.