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Finding the Fourth Proportional to 793.99, 1,191.12 and 447.18

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Solution

The fourth proportional to 793.99, 1,191.12 and 447.18 is: 670.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.99 : 1,191.12 = 447.18 : x
  2. Step 2: Convert to fraction form
    793.99/1,191.12 = 447.18/x
  3. Step 3: Cross multiply
    793.99x = 1,191.12 × 447.18
  4. Step 4: Simplify right side
    793.99x = 532,645.04
  5. Step 5: Solve for x
    x = 532,645.04/793.99
  6. Step 6: Final answer
    x = 670.85

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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.