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Finding the Fourth Proportional to 539,375.52, 807,801.60 and 426,296.64

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Solution

The fourth proportional to 539,375.52, 807,801.60 and 426,296.64 is: 638,447.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,375.52 : 807,801.60 = 426,296.64 : x
  2. Step 2: Convert to fraction form
    539,375.52/807,801.60 = 426,296.64/x
  3. Step 3: Cross multiply
    539,375.52x = 807,801.60 × 426,296.64
  4. Step 4: Simplify right side
    539,375.52x = 344,363,107,866.62
  5. Step 5: Solve for x
    x = 344,363,107,866.62/539,375.52
  6. Step 6: Final answer
    x = 638,447.79

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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.