Home / 386,377.20-579,602.70-120,066.24

Finding the Fourth Proportional to 386,377.20, 579,602.70 and 120,066.24

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Solution

The fourth proportional to 386,377.20, 579,602.70 and 120,066.24 is: 180,110.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,377.20 : 579,602.70 = 120,066.24 : x
  2. Step 2: Convert to fraction form
    386,377.20/579,602.70 = 120,066.24/x
  3. Step 3: Cross multiply
    386,377.20x = 579,602.70 × 120,066.24
  4. Step 4: Simplify right side
    386,377.20x = 69,590,716,882.85
  5. Step 5: Solve for x
    x = 69,590,716,882.85/386,377.20
  6. Step 6: Final answer
    x = 180,110.83

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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.