Home / 861,801.30-1,189,334.85-517,742.46

Finding the Fourth Proportional to 861,801.30, 1,189,334.85 and 517,742.46

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Solution

The fourth proportional to 861,801.30, 1,189,334.85 and 517,742.46 is: 714,514.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,801.30 : 1,189,334.85 = 517,742.46 : x
  2. Step 2: Convert to fraction form
    861,801.30/1,189,334.85 = 517,742.46/x
  3. Step 3: Cross multiply
    861,801.30x = 1,189,334.85 × 517,742.46
  4. Step 4: Simplify right side
    861,801.30x = 615,769,151,002.73
  5. Step 5: Solve for x
    x = 615,769,151,002.73/861,801.30
  6. Step 6: Final answer
    x = 714,514.07

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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.