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Finding the Fourth Proportional to 502,897.60, 754,346.40 and 447,785.20

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Solution

The fourth proportional to 502,897.60, 754,346.40 and 447,785.20 is: 671,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,897.60 : 754,346.40 = 447,785.20 : x
  2. Step 2: Convert to fraction form
    502,897.60/754,346.40 = 447,785.20/x
  3. Step 3: Cross multiply
    502,897.60x = 754,346.40 × 447,785.20
  4. Step 4: Simplify right side
    502,897.60x = 337,785,153,593.28
  5. Step 5: Solve for x
    x = 337,785,153,593.28/502,897.60
  6. Step 6: Final answer
    x = 671,677.80

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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.