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Finding the Fourth Proportional to 539,345.70, 809,018.55 and 484,233.30

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Solution

The fourth proportional to 539,345.70, 809,018.55 and 484,233.30 is: 726,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,345.70 : 809,018.55 = 484,233.30 : x
  2. Step 2: Convert to fraction form
    539,345.70/809,018.55 = 484,233.30/x
  3. Step 3: Cross multiply
    539,345.70x = 809,018.55 × 484,233.30
  4. Step 4: Simplify right side
    539,345.70x = 391,753,722,227.72
  5. Step 5: Solve for x
    x = 391,753,722,227.72/539,345.70
  6. Step 6: Final answer
    x = 726,349.95

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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.