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Finding the Fourth Proportional to 629,446.75, 868,636.61 and 342,966.86

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Solution

The fourth proportional to 629,446.75, 868,636.61 and 342,966.86 is: 473,294.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,446.75 : 868,636.61 = 342,966.86 : x
  2. Step 2: Convert to fraction form
    629,446.75/868,636.61 = 342,966.86/x
  3. Step 3: Cross multiply
    629,446.75x = 868,636.61 × 342,966.86
  4. Step 4: Simplify right side
    629,446.75x = 297,913,569,098.24
  5. Step 5: Solve for x
    x = 297,913,569,098.24/629,446.75
  6. Step 6: Final answer
    x = 473,294.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.