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Finding the Fourth Proportional to 629,960.60, 944,695.20 and 274,732.40

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Solution

The fourth proportional to 629,960.60, 944,695.20 and 274,732.40 is: 411,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,960.60 : 944,695.20 = 274,732.40 : x
  2. Step 2: Convert to fraction form
    629,960.60/944,695.20 = 274,732.40/x
  3. Step 3: Cross multiply
    629,960.60x = 944,695.20 × 274,732.40
  4. Step 4: Simplify right side
    629,960.60x = 259,538,379,564.48
  5. Step 5: Solve for x
    x = 259,538,379,564.48/629,960.60
  6. Step 6: Final answer
    x = 411,991.45

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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.