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Finding the Fourth Proportional to 497,757.90, 746,639.55 and 123,780.90

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Solution

The fourth proportional to 497,757.90, 746,639.55 and 123,780.90 is: 185,672.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,757.90 : 746,639.55 = 123,780.90 : x
  2. Step 2: Convert to fraction form
    497,757.90/746,639.55 = 123,780.90/x
  3. Step 3: Cross multiply
    497,757.90x = 746,639.55 × 123,780.90
  4. Step 4: Simplify right side
    497,757.90x = 92,419,715,474.60
  5. Step 5: Solve for x
    x = 92,419,715,474.60/497,757.90
  6. Step 6: Final answer
    x = 185,672.02

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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.