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Finding the Fourth Proportional to 502,549.78, 753,812.68 and 123,469.82

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Solution

The fourth proportional to 502,549.78, 753,812.68 and 123,469.82 is: 185,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,549.78 : 753,812.68 = 123,469.82 : x
  2. Step 2: Convert to fraction form
    502,549.78/753,812.68 = 123,469.82/x
  3. Step 3: Cross multiply
    502,549.78x = 753,812.68 × 123,469.82
  4. Step 4: Simplify right side
    502,549.78x = 93,073,115,913.32
  5. Step 5: Solve for x
    x = 93,073,115,913.32/502,549.78
  6. Step 6: Final answer
    x = 185,201.78

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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.