Home / 327,328.20-490,992.30-319,552.20

Finding the Fourth Proportional to 327,328.20, 490,992.30 and 319,552.20

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Solution

The fourth proportional to 327,328.20, 490,992.30 and 319,552.20 is: 479,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,328.20 : 490,992.30 = 319,552.20 : x
  2. Step 2: Convert to fraction form
    327,328.20/490,992.30 = 319,552.20/x
  3. Step 3: Cross multiply
    327,328.20x = 490,992.30 × 319,552.20
  4. Step 4: Simplify right side
    327,328.20x = 156,897,669,648.06
  5. Step 5: Solve for x
    x = 156,897,669,648.06/327,328.20
  6. Step 6: Final answer
    x = 479,328.30

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1.5x scale

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.