Home / 386,361.20-579,578.72-120,050.20

Finding the Fourth Proportional to 386,361.20, 579,578.72 and 120,050.20

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Solution

The fourth proportional to 386,361.20, 579,578.72 and 120,050.20 is: 180,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,361.20 : 579,578.72 = 120,050.20 : x
  2. Step 2: Convert to fraction form
    386,361.20/579,578.72 = 120,050.20/x
  3. Step 3: Cross multiply
    386,361.20x = 579,578.72 × 120,050.20
  4. Step 4: Simplify right side
    386,361.20x = 69,578,541,251.74
  5. Step 5: Solve for x
    x = 69,578,541,251.74/386,361.20
  6. Step 6: Final answer
    x = 180,086.77

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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.