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Finding the Fourth Proportional to 502,216.28, 693,063.36 and 275,861.80

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Solution

The fourth proportional to 502,216.28, 693,063.36 and 275,861.80 is: 380,691.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,216.28 : 693,063.36 = 275,861.80 : x
  2. Step 2: Convert to fraction form
    502,216.28/693,063.36 = 275,861.80/x
  3. Step 3: Cross multiply
    502,216.28x = 693,063.36 × 275,861.80
  4. Step 4: Simplify right side
    502,216.28x = 191,189,706,003.65
  5. Step 5: Solve for x
    x = 191,189,706,003.65/502,216.28
  6. Step 6: Final answer
    x = 380,691.97

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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.