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Finding the Fourth Proportional to 681,250.50, 940,125.69 and 379,463.94

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Solution

The fourth proportional to 681,250.50, 940,125.69 and 379,463.94 is: 523,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,250.50 : 940,125.69 = 379,463.94 : x
  2. Step 2: Convert to fraction form
    681,250.50/940,125.69 = 379,463.94/x
  3. Step 3: Cross multiply
    681,250.50x = 940,125.69 × 379,463.94
  4. Step 4: Simplify right side
    681,250.50x = 356,743,798,422.62
  5. Step 5: Solve for x
    x = 356,743,798,422.62/681,250.50
  6. Step 6: Final answer
    x = 523,660.24

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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.