Home / 681,816.50-1,022,872.38-261,092.39

Finding the Fourth Proportional to 681,816.50, 1,022,872.38 and 261,092.39

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Solution

The fourth proportional to 681,816.50, 1,022,872.38 and 261,092.39 is: 391,695.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,816.50 : 1,022,872.38 = 261,092.39 : x
  2. Step 2: Convert to fraction form
    681,816.50/1,022,872.38 = 261,092.39/x
  3. Step 3: Cross multiply
    681,816.50x = 1,022,872.38 × 261,092.39
  4. Step 4: Simplify right side
    681,816.50x = 267,064,194,359.19
  5. Step 5: Solve for x
    x = 267,064,194,359.19/681,816.50
  6. Step 6: Final answer
    x = 391,695.12

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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.