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Finding the Fourth Proportional to 607,630.72, 911,443.20 and 337,631.68

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Solution

The fourth proportional to 607,630.72, 911,443.20 and 337,631.68 is: 506,445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,630.72 : 911,443.20 = 337,631.68 : x
  2. Step 2: Convert to fraction form
    607,630.72/911,443.20 = 337,631.68/x
  3. Step 3: Cross multiply
    607,630.72x = 911,443.20 × 337,631.68
  4. Step 4: Simplify right side
    607,630.72x = 307,732,098,840.58
  5. Step 5: Solve for x
    x = 307,732,098,840.58/607,630.72
  6. Step 6: Final answer
    x = 506,445.92

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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.