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Finding the Fourth Proportional to 497,637.70, 746,456.55 and 408,991.30

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Solution

The fourth proportional to 497,637.70, 746,456.55 and 408,991.30 is: 613,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,637.70 : 746,456.55 = 408,991.30 : x
  2. Step 2: Convert to fraction form
    497,637.70/746,456.55 = 408,991.30/x
  3. Step 3: Cross multiply
    497,637.70x = 746,456.55 × 408,991.30
  4. Step 4: Simplify right side
    497,637.70x = 305,294,234,778.02
  5. Step 5: Solve for x
    x = 305,294,234,778.02/497,637.70
  6. Step 6: Final answer
    x = 613,486.95

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Similar ratio
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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.