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Finding the Fourth Proportional to 663,699.96, 996,546.92 and 379,711.13

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Solution

The fourth proportional to 663,699.96, 996,546.92 and 379,711.13 is: 570,137.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,699.96 : 996,546.92 = 379,711.13 : x
  2. Step 2: Convert to fraction form
    663,699.96/996,546.92 = 379,711.13/x
  3. Step 3: Cross multiply
    663,699.96x = 996,546.92 × 379,711.13
  4. Step 4: Simplify right side
    663,699.96x = 378,399,950,209.93
  5. Step 5: Solve for x
    x = 378,399,950,209.93/663,699.96
  6. Step 6: Final answer
    x = 570,137.07

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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.