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Finding the Fourth Proportional to 636,833.64, 954,463.08 and 321,380.76

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Solution

The fourth proportional to 636,833.64, 954,463.08 and 321,380.76 is: 481,673.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,833.64 : 954,463.08 = 321,380.76 : x
  2. Step 2: Convert to fraction form
    636,833.64/954,463.08 = 321,380.76/x
  3. Step 3: Cross multiply
    636,833.64x = 954,463.08 × 321,380.76
  4. Step 4: Simplify right side
    636,833.64x = 306,746,070,042.34
  5. Step 5: Solve for x
    x = 306,746,070,042.34/636,833.64
  6. Step 6: Final answer
    x = 481,673.79

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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.