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Finding the Fourth Proportional to 681,696.32, 940,722.08 and 379,882.56

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Solution

The fourth proportional to 681,696.32, 940,722.08 and 379,882.56 is: 524,227.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,696.32 : 940,722.08 = 379,882.56 : x
  2. Step 2: Convert to fraction form
    681,696.32/940,722.08 = 379,882.56/x
  3. Step 3: Cross multiply
    681,696.32x = 940,722.08 × 379,882.56
  4. Step 4: Simplify right side
    681,696.32x = 357,363,911,998.93
  5. Step 5: Solve for x
    x = 357,363,911,998.93/681,696.32
  6. Step 6: Final answer
    x = 524,227.43

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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.