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Finding the Fourth Proportional to 681,360.48, 940,265.28 and 379,548

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Solution

The fourth proportional to 681,360.48, 940,265.28 and 379,548 is: 523,769.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,360.48 : 940,265.28 = 379,548 : x
  2. Step 2: Convert to fraction form
    681,360.48/940,265.28 = 379,548/x
  3. Step 3: Cross multiply
    681,360.48x = 940,265.28 × 379,548
  4. Step 4: Simplify right side
    681,360.48x = 356,875,806,493.44
  5. Step 5: Solve for x
    x = 356,875,806,493.44/681,360.48
  6. Step 6: Final answer
    x = 523,769.45

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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.