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Finding the Fourth Proportional to 600.88, 829.53 and 391.18

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Solution

The fourth proportional to 600.88, 829.53 and 391.18 is: 540.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.88 : 829.53 = 391.18 : x
  2. Step 2: Convert to fraction form
    600.88/829.53 = 391.18/x
  3. Step 3: Cross multiply
    600.88x = 829.53 × 391.18
  4. Step 4: Simplify right side
    600.88x = 324,491.40
  5. Step 5: Solve for x
    x = 324,491.40/600.88
  6. Step 6: Final answer
    x = 540.03

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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.