Home / 1,180,387.20-1,770,350.40-392,419.20

Finding the Fourth Proportional to 1,180,387.20, 1,770,350.40 and 392,419.20

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Solution

The fourth proportional to 1,180,387.20, 1,770,350.40 and 392,419.20 is: 588,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,180,387.20 : 1,770,350.40 = 392,419.20 : x
  2. Step 2: Convert to fraction form
    1,180,387.20/1,770,350.40 = 392,419.20/x
  3. Step 3: Cross multiply
    1,180,387.20x = 1,770,350.40 × 392,419.20
  4. Step 4: Simplify right side
    1,180,387.20x = 694,719,487,687.68
  5. Step 5: Solve for x
    x = 694,719,487,687.68/1,180,387.20
  6. Step 6: Final answer
    x = 588,552.20

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1.5x scale

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.