Home / 861,253.91-1,291,012.42-541,634.19

Finding the Fourth Proportional to 861,253.91, 1,291,012.42 and 541,634.19

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Solution

The fourth proportional to 861,253.91, 1,291,012.42 and 541,634.19 is: 811,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,253.91 : 1,291,012.42 = 541,634.19 : x
  2. Step 2: Convert to fraction form
    861,253.91/1,291,012.42 = 541,634.19/x
  3. Step 3: Cross multiply
    861,253.91x = 1,291,012.42 × 541,634.19
  4. Step 4: Simplify right side
    861,253.91x = 699,256,471,163.31
  5. Step 5: Solve for x
    x = 699,256,471,163.31/861,253.91
  6. Step 6: Final answer
    x = 811,905.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.