Home / 861,565.28-1,189,071.51-494,185.76

Finding the Fourth Proportional to 861,565.28, 1,189,071.51 and 494,185.76

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Solution

The fourth proportional to 861,565.28, 1,189,071.51 and 494,185.76 is: 682,040.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,565.28 : 1,189,071.51 = 494,185.76 : x
  2. Step 2: Convert to fraction form
    861,565.28/1,189,071.51 = 494,185.76/x
  3. Step 3: Cross multiply
    861,565.28x = 1,189,071.51 × 494,185.76
  4. Step 4: Simplify right side
    861,565.28x = 587,622,207,863.70
  5. Step 5: Solve for x
    x = 587,622,207,863.70/861,565.28
  6. Step 6: Final answer
    x = 682,040.26

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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.