Home / 861,255.91-1,291,015.42-541,636.19

Finding the Fourth Proportional to 861,255.91, 1,291,015.42 and 541,636.19

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Solution

The fourth proportional to 861,255.91, 1,291,015.42 and 541,636.19 is: 811,908.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,255.91 : 1,291,015.42 = 541,636.19 : x
  2. Step 2: Convert to fraction form
    861,255.91/1,291,015.42 = 541,636.19/x
  3. Step 3: Cross multiply
    861,255.91x = 1,291,015.42 × 541,636.19
  4. Step 4: Simplify right side
    861,255.91x = 699,260,670,611.87
  5. Step 5: Solve for x
    x = 699,260,670,611.87/861,255.91
  6. Step 6: Final answer
    x = 811,908.13

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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.