Home / 861,723.91-1,188,871.19-498,949.75

Finding the Fourth Proportional to 861,723.91, 1,188,871.19 and 498,949.75

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Solution

The fourth proportional to 861,723.91, 1,188,871.19 and 498,949.75 is: 688,372.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,723.91 : 1,188,871.19 = 498,949.75 : x
  2. Step 2: Convert to fraction form
    861,723.91/1,188,871.19 = 498,949.75/x
  3. Step 3: Cross multiply
    861,723.91x = 1,188,871.19 × 498,949.75
  4. Step 4: Simplify right side
    861,723.91x = 593,186,980,537.95
  5. Step 5: Solve for x
    x = 593,186,980,537.95/861,723.91
  6. Step 6: Final answer
    x = 688,372.43

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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.