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Finding the Fourth Proportional to 497,791.60, 746,687.40 and 308,402.80

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Solution

The fourth proportional to 497,791.60, 746,687.40 and 308,402.80 is: 462,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,791.60 : 746,687.40 = 308,402.80 : x
  2. Step 2: Convert to fraction form
    497,791.60/746,687.40 = 308,402.80/x
  3. Step 3: Cross multiply
    497,791.60x = 746,687.40 × 308,402.80
  4. Step 4: Simplify right side
    497,791.60x = 230,280,484,884.72
  5. Step 5: Solve for x
    x = 230,280,484,884.72/497,791.60
  6. Step 6: Final answer
    x = 462,604.20

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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.