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Finding the Fourth Proportional to 591.66, 886.20 and 385.62

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Solution

The fourth proportional to 591.66, 886.20 and 385.62 is: 577.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.66 : 886.20 = 385.62 : x
  2. Step 2: Convert to fraction form
    591.66/886.20 = 385.62/x
  3. Step 3: Cross multiply
    591.66x = 886.20 × 385.62
  4. Step 4: Simplify right side
    591.66x = 341,736.44
  5. Step 5: Solve for x
    x = 341,736.44/591.66
  6. Step 6: Final answer
    x = 577.59

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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.