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Finding the Fourth Proportional to 663,046.71, 994,562.78 and 396,881.52

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Solution

The fourth proportional to 663,046.71, 994,562.78 and 396,881.52 is: 595,317.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,046.71 : 994,562.78 = 396,881.52 : x
  2. Step 2: Convert to fraction form
    663,046.71/994,562.78 = 396,881.52/x
  3. Step 3: Cross multiply
    663,046.71x = 994,562.78 × 396,881.52
  4. Step 4: Simplify right side
    663,046.71x = 394,723,585,877.42
  5. Step 5: Solve for x
    x = 394,723,585,877.42/663,046.71
  6. Step 6: Final answer
    x = 595,317.92

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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.