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Finding the Fourth Proportional to 814.89, 1,124.57 and 441.89

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Solution

The fourth proportional to 814.89, 1,124.57 and 441.89 is: 609.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    814.89 : 1,124.57 = 441.89 : x
  2. Step 2: Convert to fraction form
    814.89/1,124.57 = 441.89/x
  3. Step 3: Cross multiply
    814.89x = 1,124.57 × 441.89
  4. Step 4: Simplify right side
    814.89x = 496,928.41
  5. Step 5: Solve for x
    x = 496,928.41/814.89
  6. Step 6: Final answer
    x = 609.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.