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Finding the Fourth Proportional to 600.59, 898.64 and 427.66

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Solution

The fourth proportional to 600.59, 898.64 and 427.66 is: 639.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.59 : 898.64 = 427.66 : x
  2. Step 2: Convert to fraction form
    600.59/898.64 = 427.66/x
  3. Step 3: Cross multiply
    600.59x = 898.64 × 427.66
  4. Step 4: Simplify right side
    600.59x = 384,306.82
  5. Step 5: Solve for x
    x = 384,306.82/600.59
  6. Step 6: Final answer
    x = 639.88

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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.