Home / 1,261,963.82-1,741,662.87-718,231.88

Finding the Fourth Proportional to 1,261,963.82, 1,741,662.87 and 718,231.88

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Solution

The fourth proportional to 1,261,963.82, 1,741,662.87 and 718,231.88 is: 991,246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,963.82 : 1,741,662.87 = 718,231.88 : x
  2. Step 2: Convert to fraction form
    1,261,963.82/1,741,662.87 = 718,231.88/x
  3. Step 3: Cross multiply
    1,261,963.82x = 1,741,662.87 × 718,231.88
  4. Step 4: Simplify right side
    1,261,963.82x = 1,250,917,797,446.30
  5. Step 5: Solve for x
    x = 1,250,917,797,446.30/1,261,963.82
  6. Step 6: Final answer
    x = 991,246.96

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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.