Home / 386,378.20-579,604.20-120,067.24

Finding the Fourth Proportional to 386,378.20, 579,604.20 and 120,067.24

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Solution

The fourth proportional to 386,378.20, 579,604.20 and 120,067.24 is: 180,112.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,378.20 : 579,604.20 = 120,067.24 : x
  2. Step 2: Convert to fraction form
    386,378.20/579,604.20 = 120,067.24/x
  3. Step 3: Cross multiply
    386,378.20x = 579,604.20 × 120,067.24
  4. Step 4: Simplify right side
    386,378.20x = 69,591,476,586.41
  5. Step 5: Solve for x
    x = 69,591,476,586.41/386,378.20
  6. Step 6: Final answer
    x = 180,112.33

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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.