Home / 681,814-1,022,868.64-261,089.88

Finding the Fourth Proportional to 681,814, 1,022,868.64 and 261,089.88

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Solution

The fourth proportional to 681,814, 1,022,868.64 and 261,089.88 is: 391,691.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,814 : 1,022,868.64 = 261,089.88 : x
  2. Step 2: Convert to fraction form
    681,814/1,022,868.64 = 261,089.88/x
  3. Step 3: Cross multiply
    681,814x = 1,022,868.64 × 261,089.88
  4. Step 4: Simplify right side
    681,814x = 267,060,650,473.36
  5. Step 5: Solve for x
    x = 267,060,650,473.36/681,814
  6. Step 6: Final answer
    x = 391,691.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.