Home / 861,259.41-1,291,020.66-541,639.69

Finding the Fourth Proportional to 861,259.41, 1,291,020.66 and 541,639.69

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Solution

The fourth proportional to 861,259.41, 1,291,020.66 and 541,639.69 is: 811,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,259.41 : 1,291,020.66 = 541,639.69 : x
  2. Step 2: Convert to fraction form
    861,259.41/1,291,020.66 = 541,639.69/x
  3. Step 3: Cross multiply
    861,259.41x = 1,291,020.66 × 541,639.69
  4. Step 4: Simplify right side
    861,259.41x = 699,268,030,066.00
  5. Step 5: Solve for x
    x = 699,268,030,066.00/861,259.41
  6. Step 6: Final answer
    x = 811,913.37

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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.