Home / 861,573.31-1,189,296.52-677,331.24

Finding the Fourth Proportional to 861,573.31, 1,189,296.52 and 677,331.24

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Solution

The fourth proportional to 861,573.31, 1,189,296.52 and 677,331.24 is: 934,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,573.31 : 1,189,296.52 = 677,331.24 : x
  2. Step 2: Convert to fraction form
    861,573.31/1,189,296.52 = 677,331.24/x
  3. Step 3: Cross multiply
    861,573.31x = 1,189,296.52 × 677,331.24
  4. Step 4: Simplify right side
    861,573.31x = 805,547,687,620.98
  5. Step 5: Solve for x
    x = 805,547,687,620.98/861,573.31
  6. Step 6: Final answer
    x = 934,972.89

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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.