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Finding the Fourth Proportional to 629,813, 944,720.18 and 156,498.36

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Solution

The fourth proportional to 629,813, 944,720.18 and 156,498.36 is: 234,747.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,813 : 944,720.18 = 156,498.36 : x
  2. Step 2: Convert to fraction form
    629,813/944,720.18 = 156,498.36/x
  3. Step 3: Cross multiply
    629,813x = 944,720.18 × 156,498.36
  4. Step 4: Simplify right side
    629,813x = 147,847,158,828.91
  5. Step 5: Solve for x
    x = 147,847,158,828.91/629,813
  6. Step 6: Final answer
    x = 234,747.71

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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.