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Finding the Fourth Proportional to 435,645.70, 653,468.55 and 329,200.90

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Solution

The fourth proportional to 435,645.70, 653,468.55 and 329,200.90 is: 493,801.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,645.70 : 653,468.55 = 329,200.90 : x
  2. Step 2: Convert to fraction form
    435,645.70/653,468.55 = 329,200.90/x
  3. Step 3: Cross multiply
    435,645.70x = 653,468.55 × 329,200.90
  4. Step 4: Simplify right side
    435,645.70x = 215,122,434,781.70
  5. Step 5: Solve for x
    x = 215,122,434,781.70/435,645.70
  6. Step 6: Final answer
    x = 493,801.35

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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.