Home / 578,867.78-868,385.75-179,540.73

Finding the Fourth Proportional to 578,867.78, 868,385.75 and 179,540.73

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Solution

The fourth proportional to 578,867.78, 868,385.75 and 179,540.73 is: 269,337.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,867.78 : 868,385.75 = 179,540.73 : x
  2. Step 2: Convert to fraction form
    578,867.78/868,385.75 = 179,540.73/x
  3. Step 3: Cross multiply
    578,867.78x = 868,385.75 × 179,540.73
  4. Step 4: Simplify right side
    578,867.78x = 155,910,610,578.89
  5. Step 5: Solve for x
    x = 155,910,610,578.89/578,867.78
  6. Step 6: Final answer
    x = 269,337.17

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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.