Home / 861,898.92-1,189,396.13-469,422.96

Finding the Fourth Proportional to 861,898.92, 1,189,396.13 and 469,422.96

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Solution

The fourth proportional to 861,898.92, 1,189,396.13 and 469,422.96 is: 647,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,898.92 : 1,189,396.13 = 469,422.96 : x
  2. Step 2: Convert to fraction form
    861,898.92/1,189,396.13 = 469,422.96/x
  3. Step 3: Cross multiply
    861,898.92x = 1,189,396.13 × 469,422.96
  4. Step 4: Simplify right side
    861,898.92x = 558,329,849,610.03
  5. Step 5: Solve for x
    x = 558,329,849,610.03/861,898.92
  6. Step 6: Final answer
    x = 647,790.40

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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.