Home / 329,721.60-494,582.40-327,388.80

Finding the Fourth Proportional to 329,721.60, 494,582.40 and 327,388.80

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Solution

The fourth proportional to 329,721.60, 494,582.40 and 327,388.80 is: 491,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,721.60 : 494,582.40 = 327,388.80 : x
  2. Step 2: Convert to fraction form
    329,721.60/494,582.40 = 327,388.80/x
  3. Step 3: Cross multiply
    329,721.60x = 494,582.40 × 327,388.80
  4. Step 4: Simplify right side
    329,721.60x = 161,920,738,437.12
  5. Step 5: Solve for x
    x = 161,920,738,437.12/329,721.60
  6. Step 6: Final answer
    x = 491,083.20

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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.