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Finding the Fourth Proportional to 591.66, 886.53 and 447.18

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Solution

The fourth proportional to 591.66, 886.53 and 447.18 is: 670.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.66 : 886.53 = 447.18 : x
  2. Step 2: Convert to fraction form
    591.66/886.53 = 447.18/x
  3. Step 3: Cross multiply
    591.66x = 886.53 × 447.18
  4. Step 4: Simplify right side
    591.66x = 396,438.49
  5. Step 5: Solve for x
    x = 396,438.49/591.66
  6. Step 6: Final answer
    x = 670.04

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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.