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Finding the Fourth Proportional to 591.99, 885.24 and 427.97

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Solution

The fourth proportional to 591.99, 885.24 and 427.97 is: 639.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.99 : 885.24 = 427.97 : x
  2. Step 2: Convert to fraction form
    591.99/885.24 = 427.97/x
  3. Step 3: Cross multiply
    591.99x = 885.24 × 427.97
  4. Step 4: Simplify right side
    591.99x = 378,851.74
  5. Step 5: Solve for x
    x = 378,851.74/591.99
  6. Step 6: Final answer
    x = 639.96

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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.