Home / 329,891.06-494,835.78-80,573.06

Finding the Fourth Proportional to 329,891.06, 494,835.78 and 80,573.06

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Solution

The fourth proportional to 329,891.06, 494,835.78 and 80,573.06 is: 120,859.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,891.06 : 494,835.78 = 80,573.06 : x
  2. Step 2: Convert to fraction form
    329,891.06/494,835.78 = 80,573.06/x
  3. Step 3: Cross multiply
    329,891.06x = 494,835.78 × 80,573.06
  4. Step 4: Simplify right side
    329,891.06x = 39,870,432,992.09
  5. Step 5: Solve for x
    x = 39,870,432,992.09/329,891.06
  6. Step 6: Final answer
    x = 120,859.39

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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.