Home / 861,316.20-1,291,105.76-541,696.46

Finding the Fourth Proportional to 861,316.20, 1,291,105.76 and 541,696.46

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Solution

The fourth proportional to 861,316.20, 1,291,105.76 and 541,696.46 is: 811,998.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,316.20 : 1,291,105.76 = 541,696.46 : x
  2. Step 2: Convert to fraction form
    861,316.20/1,291,105.76 = 541,696.46/x
  3. Step 3: Cross multiply
    861,316.20x = 1,291,105.76 × 541,696.46
  4. Step 4: Simplify right side
    861,316.20x = 699,387,419,677.61
  5. Step 5: Solve for x
    x = 699,387,419,677.61/861,316.20
  6. Step 6: Final answer
    x = 811,998.45

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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.