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Finding the Fourth Proportional to 681,470.62, 940,471.05 and 375,546.98

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Solution

The fourth proportional to 681,470.62, 940,471.05 and 375,546.98 is: 518,277.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,470.62 : 940,471.05 = 375,546.98 : x
  2. Step 2: Convert to fraction form
    681,470.62/940,471.05 = 375,546.98/x
  3. Step 3: Cross multiply
    681,470.62x = 940,471.05 × 375,546.98
  4. Step 4: Simplify right side
    681,470.62x = 353,191,066,364.41
  5. Step 5: Solve for x
    x = 353,191,066,364.41/681,470.62
  6. Step 6: Final answer
    x = 518,277.76

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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.