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Finding the Fourth Proportional to 629,471.38, 944,486.15 and 329,880.74

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Solution

The fourth proportional to 629,471.38, 944,486.15 and 329,880.74 is: 494,967.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,471.38 : 944,486.15 = 329,880.74 : x
  2. Step 2: Convert to fraction form
    629,471.38/944,486.15 = 329,880.74/x
  3. Step 3: Cross multiply
    629,471.38x = 944,486.15 × 329,880.74
  4. Step 4: Simplify right side
    629,471.38x = 311,567,790,081.75
  5. Step 5: Solve for x
    x = 311,567,790,081.75/629,471.38
  6. Step 6: Final answer
    x = 494,967.36

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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.