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Finding the Fourth Proportional to 592.78, 818.01 and 330.79

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Solution

The fourth proportional to 592.78, 818.01 and 330.79 is: 456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.78 : 818.01 = 330.79 : x
  2. Step 2: Convert to fraction form
    592.78/818.01 = 330.79/x
  3. Step 3: Cross multiply
    592.78x = 818.01 × 330.79
  4. Step 4: Simplify right side
    592.78x = 270,585.44
  5. Step 5: Solve for x
    x = 270,585.44/592.78
  6. Step 6: Final answer
    x = 456.47

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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.