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Finding the Fourth Proportional to 663,732.83, 915,951.02 and 361,926.83

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Solution

The fourth proportional to 663,732.83, 915,951.02 and 361,926.83 is: 499,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,732.83 : 915,951.02 = 361,926.83 : x
  2. Step 2: Convert to fraction form
    663,732.83/915,951.02 = 361,926.83/x
  3. Step 3: Cross multiply
    663,732.83x = 915,951.02 × 361,926.83
  4. Step 4: Simplify right side
    663,732.83x = 331,507,242,714.48
  5. Step 5: Solve for x
    x = 331,507,242,714.48/663,732.83
  6. Step 6: Final answer
    x = 499,458.86

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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.