Home / 861,032.24-1,188,205.96-498,471.44

Finding the Fourth Proportional to 861,032.24, 1,188,205.96 and 498,471.44

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Solution

The fourth proportional to 861,032.24, 1,188,205.96 and 498,471.44 is: 687,879.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,032.24 : 1,188,205.96 = 498,471.44 : x
  2. Step 2: Convert to fraction form
    861,032.24/1,188,205.96 = 498,471.44/x
  3. Step 3: Cross multiply
    861,032.24x = 1,188,205.96 × 498,471.44
  4. Step 4: Simplify right side
    861,032.24x = 592,286,735,897.78
  5. Step 5: Solve for x
    x = 592,286,735,897.78/861,032.24
  6. Step 6: Final answer
    x = 687,879.86

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1.5x scale

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.