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Finding the Fourth Proportional to 629,635.88, 868,872.22 and 343,149.82

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Solution

The fourth proportional to 629,635.88, 868,872.22 and 343,149.82 is: 473,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,635.88 : 868,872.22 = 343,149.82 : x
  2. Step 2: Convert to fraction form
    629,635.88/868,872.22 = 343,149.82/x
  3. Step 3: Cross multiply
    629,635.88x = 868,872.22 × 343,149.82
  4. Step 4: Simplify right side
    629,635.88x = 298,153,345,896.00
  5. Step 5: Solve for x
    x = 298,153,345,896.00/629,635.88
  6. Step 6: Final answer
    x = 473,532.97

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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.