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Finding the Fourth Proportional to 437,801.60, 657,220.80 and 434,691.20

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Solution

The fourth proportional to 437,801.60, 657,220.80 and 434,691.20 is: 652,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,801.60 : 657,220.80 = 434,691.20 : x
  2. Step 2: Convert to fraction form
    437,801.60/657,220.80 = 434,691.20/x
  3. Step 3: Cross multiply
    437,801.60x = 657,220.80 × 434,691.20
  4. Step 4: Simplify right side
    437,801.60x = 285,688,098,216.96
  5. Step 5: Solve for x
    x = 285,688,098,216.96/437,801.60
  6. Step 6: Final answer
    x = 652,551.52

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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.