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Finding the Fourth Proportional to 449,761.59, 620,610.98 and 288,834.62

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Solution

The fourth proportional to 449,761.59, 620,610.98 and 288,834.62 is: 398,553.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,761.59 : 620,610.98 = 288,834.62 : x
  2. Step 2: Convert to fraction form
    449,761.59/620,610.98 = 288,834.62/x
  3. Step 3: Cross multiply
    449,761.59x = 620,610.98 × 288,834.62
  4. Step 4: Simplify right side
    449,761.59x = 179,253,932,028.90
  5. Step 5: Solve for x
    x = 179,253,932,028.90/449,761.59
  6. Step 6: Final answer
    x = 398,553.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.