Home / 861,801.56-1,189,240.57-494,259.74

Finding the Fourth Proportional to 861,801.56, 1,189,240.57 and 494,259.74

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Solution

The fourth proportional to 861,801.56, 1,189,240.57 and 494,259.74 is: 682,052.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,801.56 : 1,189,240.57 = 494,259.74 : x
  2. Step 2: Convert to fraction form
    861,801.56/1,189,240.57 = 494,259.74/x
  3. Step 3: Cross multiply
    861,801.56x = 1,189,240.57 × 494,259.74
  4. Step 4: Simplify right side
    861,801.56x = 587,793,734,925.65
  5. Step 5: Solve for x
    x = 587,793,734,925.65/861,801.56
  6. Step 6: Final answer
    x = 682,052.30

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.