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Finding the Fourth Proportional to 681,770.25, 940,849.32 and 375,857.62

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Solution

The fourth proportional to 681,770.25, 940,849.32 and 375,857.62 is: 518,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,770.25 : 940,849.32 = 375,857.62 : x
  2. Step 2: Convert to fraction form
    681,770.25/940,849.32 = 375,857.62/x
  3. Step 3: Cross multiply
    681,770.25x = 940,849.32 × 375,857.62
  4. Step 4: Simplify right side
    681,770.25x = 353,625,384,548.69
  5. Step 5: Solve for x
    x = 353,625,384,548.69/681,770.25
  6. Step 6: Final answer
    x = 518,687.02

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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.