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Finding the Fourth Proportional to 681,251.50, 940,127.07 and 379,464.94

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Solution

The fourth proportional to 681,251.50, 940,127.07 and 379,464.94 is: 523,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,251.50 : 940,127.07 = 379,464.94 : x
  2. Step 2: Convert to fraction form
    681,251.50/940,127.07 = 379,464.94/x
  3. Step 3: Cross multiply
    681,251.50x = 940,127.07 × 379,464.94
  4. Step 4: Simplify right side
    681,251.50x = 356,745,262,209.93
  5. Step 5: Solve for x
    x = 356,745,262,209.93/681,251.50
  6. Step 6: Final answer
    x = 523,661.62

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1.5x scale

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.