Home / 861,943.92-1,189,482.56-499,577.97

Finding the Fourth Proportional to 861,943.92, 1,189,482.56 and 499,577.97

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Solution

The fourth proportional to 861,943.92, 1,189,482.56 and 499,577.97 is: 689,417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,943.92 : 1,189,482.56 = 499,577.97 : x
  2. Step 2: Convert to fraction form
    861,943.92/1,189,482.56 = 499,577.97/x
  3. Step 3: Cross multiply
    861,943.92x = 1,189,482.56 × 499,577.97
  4. Step 4: Simplify right side
    861,943.92x = 594,239,280,177.31
  5. Step 5: Solve for x
    x = 594,239,280,177.31/861,943.92
  6. Step 6: Final answer
    x = 689,417.56

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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.