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Finding the Fourth Proportional to 502,211.68, 693,064.08 and 275,861.92

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Solution

The fourth proportional to 502,211.68, 693,064.08 and 275,861.92 is: 380,696.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,211.68 : 693,064.08 = 275,861.92 : x
  2. Step 2: Convert to fraction form
    502,211.68/693,064.08 = 275,861.92/x
  3. Step 3: Cross multiply
    502,211.68x = 693,064.08 × 275,861.92
  4. Step 4: Simplify right side
    502,211.68x = 191,189,987,791.83
  5. Step 5: Solve for x
    x = 191,189,987,791.83/502,211.68
  6. Step 6: Final answer
    x = 380,696.02

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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.