Home / 1,294,175.28-1,785,963.60-721,202.88

Finding the Fourth Proportional to 1,294,175.28, 1,785,963.60 and 721,202.88

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Solution

The fourth proportional to 1,294,175.28, 1,785,963.60 and 721,202.88 is: 995,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,175.28 : 1,785,963.60 = 721,202.88 : x
  2. Step 2: Convert to fraction form
    1,294,175.28/1,785,963.60 = 721,202.88/x
  3. Step 3: Cross multiply
    1,294,175.28x = 1,785,963.60 × 721,202.88
  4. Step 4: Simplify right side
    1,294,175.28x = 1,288,042,091,895.17
  5. Step 5: Solve for x
    x = 1,288,042,091,895.17/1,294,175.28
  6. Step 6: Final answer
    x = 995,260.93

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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.