Home / 861,974.47-1,189,524.76-499,608.52

Finding the Fourth Proportional to 861,974.47, 1,189,524.76 and 499,608.52

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Solution

The fourth proportional to 861,974.47, 1,189,524.76 and 499,608.52 is: 689,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,974.47 : 1,189,524.76 = 499,608.52 : x
  2. Step 2: Convert to fraction form
    861,974.47/1,189,524.76 = 499,608.52/x
  3. Step 3: Cross multiply
    861,974.47x = 1,189,524.76 × 499,608.52
  4. Step 4: Simplify right side
    861,974.47x = 594,296,700,624.12
  5. Step 5: Solve for x
    x = 594,296,700,624.12/861,974.47
  6. Step 6: Final answer
    x = 689,459.75

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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.