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Finding the Fourth Proportional to 499,517.90, 749,276.85 and 454,028.30

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Solution

The fourth proportional to 499,517.90, 749,276.85 and 454,028.30 is: 681,042.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,517.90 : 749,276.85 = 454,028.30 : x
  2. Step 2: Convert to fraction form
    499,517.90/749,276.85 = 454,028.30/x
  3. Step 3: Cross multiply
    499,517.90x = 749,276.85 × 454,028.30
  4. Step 4: Simplify right side
    499,517.90x = 340,192,894,434.86
  5. Step 5: Solve for x
    x = 340,192,894,434.86/499,517.90
  6. Step 6: Final answer
    x = 681,042.45

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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.