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Finding the Fourth Proportional to 580,276.28, 800,575.98 and 379,188.92

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Solution

The fourth proportional to 580,276.28, 800,575.98 and 379,188.92 is: 523,146.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,276.28 : 800,575.98 = 379,188.92 : x
  2. Step 2: Convert to fraction form
    580,276.28/800,575.98 = 379,188.92/x
  3. Step 3: Cross multiply
    580,276.28x = 800,575.98 × 379,188.92
  4. Step 4: Simplify right side
    580,276.28x = 303,569,541,234.14
  5. Step 5: Solve for x
    x = 303,569,541,234.14/580,276.28
  6. Step 6: Final answer
    x = 523,146.56

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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.