Home / 861,944.92-1,189,483.93-499,578.97

Finding the Fourth Proportional to 861,944.92, 1,189,483.93 and 499,578.97

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Solution

The fourth proportional to 861,944.92, 1,189,483.93 and 499,578.97 is: 689,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,944.92 : 1,189,483.93 = 499,578.97 : x
  2. Step 2: Convert to fraction form
    861,944.92/1,189,483.93 = 499,578.97/x
  3. Step 3: Cross multiply
    861,944.92x = 1,189,483.93 × 499,578.97
  4. Step 4: Simplify right side
    861,944.92x = 594,241,156,580.95
  5. Step 5: Solve for x
    x = 594,241,156,580.95/861,944.92
  6. Step 6: Final answer
    x = 689,418.94

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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.