Home / 861,254.60-1,291,013.46-541,634.90

Finding the Fourth Proportional to 861,254.60, 1,291,013.46 and 541,634.90

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Solution

The fourth proportional to 861,254.60, 1,291,013.46 and 541,634.90 is: 811,906.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,254.60 : 1,291,013.46 = 541,634.90 : x
  2. Step 2: Convert to fraction form
    861,254.60/1,291,013.46 = 541,634.90/x
  3. Step 3: Cross multiply
    861,254.60x = 1,291,013.46 × 541,634.90
  4. Step 4: Simplify right side
    861,254.60x = 699,257,939,850.69
  5. Step 5: Solve for x
    x = 699,257,939,850.69/861,254.60
  6. Step 6: Final answer
    x = 811,906.19

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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.