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Finding the Fourth Proportional to 547,558.71, 820,192.38 and 440,363.22

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Solution

The fourth proportional to 547,558.71, 820,192.38 and 440,363.22 is: 659,623.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,558.71 : 820,192.38 = 440,363.22 : x
  2. Step 2: Convert to fraction form
    547,558.71/820,192.38 = 440,363.22/x
  3. Step 3: Cross multiply
    547,558.71x = 820,192.38 × 440,363.22
  4. Step 4: Simplify right side
    547,558.71x = 361,182,553,375.30
  5. Step 5: Solve for x
    x = 361,182,553,375.30/547,558.71
  6. Step 6: Final answer
    x = 659,623.43

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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.