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Finding the Fourth Proportional to 591.33, 888.09 and 518.43

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Solution

The fourth proportional to 591.33, 888.09 and 518.43 is: 778.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    591.33 : 888.09 = 518.43 : x
  2. Step 2: Convert to fraction form
    591.33/888.09 = 518.43/x
  3. Step 3: Cross multiply
    591.33x = 888.09 × 518.43
  4. Step 4: Simplify right side
    591.33x = 460,412.50
  5. Step 5: Solve for x
    x = 460,412.50/591.33
  6. Step 6: Final answer
    x = 778.61

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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.