Home / 861,260.41-1,291,022.16-541,640.69

Finding the Fourth Proportional to 861,260.41, 1,291,022.16 and 541,640.69

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Solution

The fourth proportional to 861,260.41, 1,291,022.16 and 541,640.69 is: 811,914.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,260.41 : 1,291,022.16 = 541,640.69 : x
  2. Step 2: Convert to fraction form
    861,260.41/1,291,022.16 = 541,640.69/x
  3. Step 3: Cross multiply
    861,260.41x = 1,291,022.16 × 541,640.69
  4. Step 4: Simplify right side
    861,260.41x = 699,270,133,547.69
  5. Step 5: Solve for x
    x = 699,270,133,547.69/861,260.41
  6. Step 6: Final answer
    x = 811,914.87

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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.