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Finding the Fourth Proportional to 408,132.57, 610,408.20 and 363,468.90

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Solution

The fourth proportional to 408,132.57, 610,408.20 and 363,468.90 is: 543,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,132.57 : 610,408.20 = 363,468.90 : x
  2. Step 2: Convert to fraction form
    408,132.57/610,408.20 = 363,468.90/x
  3. Step 3: Cross multiply
    408,132.57x = 610,408.20 × 363,468.90
  4. Step 4: Simplify right side
    408,132.57x = 221,864,397,004.98
  5. Step 5: Solve for x
    x = 221,864,397,004.98/408,132.57
  6. Step 6: Final answer
    x = 543,608.65

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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.