Home / 681,840.69-1,022,754.23-261,116.56

Finding the Fourth Proportional to 681,840.69, 1,022,754.23 and 261,116.56

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Solution

The fourth proportional to 681,840.69, 1,022,754.23 and 261,116.56 is: 391,672.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,840.69 : 1,022,754.23 = 261,116.56 : x
  2. Step 2: Convert to fraction form
    681,840.69/1,022,754.23 = 261,116.56/x
  3. Step 3: Cross multiply
    681,840.69x = 1,022,754.23 × 261,116.56
  4. Step 4: Simplify right side
    681,840.69x = 267,058,067,215.10
  5. Step 5: Solve for x
    x = 267,058,067,215.10/681,840.69
  6. Step 6: Final answer
    x = 391,672.24

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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.