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Finding the Fourth Proportional to 883.06, 1,324.83 and 443.78

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Solution

The fourth proportional to 883.06, 1,324.83 and 443.78 is: 665.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.06 : 1,324.83 = 443.78 : x
  2. Step 2: Convert to fraction form
    883.06/1,324.83 = 443.78/x
  3. Step 3: Cross multiply
    883.06x = 1,324.83 × 443.78
  4. Step 4: Simplify right side
    883.06x = 587,933.06
  5. Step 5: Solve for x
    x = 587,933.06/883.06
  6. Step 6: Final answer
    x = 665.79

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Double scale
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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.