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Finding the Fourth Proportional to 589.46, 884.19 and 394.28

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Solution

The fourth proportional to 589.46, 884.19 and 394.28 is: 591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    589.46 : 884.19 = 394.28 : x
  2. Step 2: Convert to fraction form
    589.46/884.19 = 394.28/x
  3. Step 3: Cross multiply
    589.46x = 884.19 × 394.28
  4. Step 4: Simplify right side
    589.46x = 348,618.43
  5. Step 5: Solve for x
    x = 348,618.43/589.46
  6. Step 6: Final answer
    x = 591.42

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Similar ratio
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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.