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Finding the Fourth Proportional to 629,937.90, 944,906.85 and 405,551.70

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Solution

The fourth proportional to 629,937.90, 944,906.85 and 405,551.70 is: 608,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,937.90 : 944,906.85 = 405,551.70 : x
  2. Step 2: Convert to fraction form
    629,937.90/944,906.85 = 405,551.70/x
  3. Step 3: Cross multiply
    629,937.90x = 944,906.85 × 405,551.70
  4. Step 4: Simplify right side
    629,937.90x = 383,208,579,359.15
  5. Step 5: Solve for x
    x = 383,208,579,359.15/629,937.90
  6. Step 6: Final answer
    x = 608,327.55

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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.