Home / 320,079.06-479,861.28-219,942.54

Finding the Fourth Proportional to 320,079.06, 479,861.28 and 219,942.54

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Solution

The fourth proportional to 320,079.06, 479,861.28 and 219,942.54 is: 329,737.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,079.06 : 479,861.28 = 219,942.54 : x
  2. Step 2: Convert to fraction form
    320,079.06/479,861.28 = 219,942.54/x
  3. Step 3: Cross multiply
    320,079.06x = 479,861.28 × 219,942.54
  4. Step 4: Simplify right side
    320,079.06x = 105,541,908,770.85
  5. Step 5: Solve for x
    x = 105,541,908,770.85/320,079.06
  6. Step 6: Final answer
    x = 329,737.00

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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.