Home / 1,191,080.20-1,786,236.36-392,171.62

Finding the Fourth Proportional to 1,191,080.20, 1,786,236.36 and 392,171.62

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Solution

The fourth proportional to 1,191,080.20, 1,786,236.36 and 392,171.62 is: 588,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,080.20 : 1,786,236.36 = 392,171.62 : x
  2. Step 2: Convert to fraction form
    1,191,080.20/1,786,236.36 = 392,171.62/x
  3. Step 3: Cross multiply
    1,191,080.20x = 1,786,236.36 × 392,171.62
  4. Step 4: Simplify right side
    1,191,080.20x = 700,511,207,004.10
  5. Step 5: Solve for x
    x = 700,511,207,004.10/1,191,080.20
  6. Step 6: Final answer
    x = 588,131.02

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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.