Home / 749,353.20-1,123,747.68-243,781.92

Finding the Fourth Proportional to 749,353.20, 1,123,747.68 and 243,781.92

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Solution

The fourth proportional to 749,353.20, 1,123,747.68 and 243,781.92 is: 365,581.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,353.20 : 1,123,747.68 = 243,781.92 : x
  2. Step 2: Convert to fraction form
    749,353.20/1,123,747.68 = 243,781.92/x
  3. Step 3: Cross multiply
    749,353.20x = 1,123,747.68 × 243,781.92
  4. Step 4: Simplify right side
    749,353.20x = 273,949,367,025.95
  5. Step 5: Solve for x
    x = 273,949,367,025.95/749,353.20
  6. Step 6: Final answer
    x = 365,581.10

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Double scale
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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.