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Finding the Fourth Proportional to 681,363.48, 940,269.42 and 379,551

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Solution

The fourth proportional to 681,363.48, 940,269.42 and 379,551 is: 523,773.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,363.48 : 940,269.42 = 379,551 : x
  2. Step 2: Convert to fraction form
    681,363.48/940,269.42 = 379,551/x
  3. Step 3: Cross multiply
    681,363.48x = 940,269.42 × 379,551
  4. Step 4: Simplify right side
    681,363.48x = 356,880,198,630.42
  5. Step 5: Solve for x
    x = 356,880,198,630.42/681,363.48
  6. Step 6: Final answer
    x = 523,773.59

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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.