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Finding the Fourth Proportional to 608.88, 839.52 and 539.22

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Solution

The fourth proportional to 608.88, 839.52 and 539.22 is: 743.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.88 : 839.52 = 539.22 : x
  2. Step 2: Convert to fraction form
    608.88/839.52 = 539.22/x
  3. Step 3: Cross multiply
    608.88x = 839.52 × 539.22
  4. Step 4: Simplify right side
    608.88x = 452,685.97
  5. Step 5: Solve for x
    x = 452,685.97/608.88
  6. Step 6: Final answer
    x = 743.47

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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.