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Finding the Fourth Proportional to 636,312.38, 954,226.17 and 281,132.64

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Solution

The fourth proportional to 636,312.38, 954,226.17 and 281,132.64 is: 421,591.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,312.38 : 954,226.17 = 281,132.64 : x
  2. Step 2: Convert to fraction form
    636,312.38/954,226.17 = 281,132.64/x
  3. Step 3: Cross multiply
    636,312.38x = 954,226.17 × 281,132.64
  4. Step 4: Simplify right side
    636,312.38x = 268,264,122,329.19
  5. Step 5: Solve for x
    x = 268,264,122,329.19/636,312.38
  6. Step 6: Final answer
    x = 421,591.87

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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.