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Finding the Fourth Proportional to 681,758.74, 940,833.72 and 375,847.12

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Solution

The fourth proportional to 681,758.74, 940,833.72 and 375,847.12 is: 518,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,758.74 : 940,833.72 = 375,847.12 : x
  2. Step 2: Convert to fraction form
    681,758.74/940,833.72 = 375,847.12/x
  3. Step 3: Cross multiply
    681,758.74x = 940,833.72 × 375,847.12
  4. Step 4: Simplify right side
    681,758.74x = 353,609,644,060.89
  5. Step 5: Solve for x
    x = 353,609,644,060.89/681,758.74
  6. Step 6: Final answer
    x = 518,672.70

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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.