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Finding the Fourth Proportional to 615.50, 843.96 and 597.28

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Solution

The fourth proportional to 615.50, 843.96 and 597.28 is: 818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.50 : 843.96 = 597.28 : x
  2. Step 2: Convert to fraction form
    615.50/843.96 = 597.28/x
  3. Step 3: Cross multiply
    615.50x = 843.96 × 597.28
  4. Step 4: Simplify right side
    615.50x = 504,080.43
  5. Step 5: Solve for x
    x = 504,080.43/615.50
  6. Step 6: Final answer
    x = 818.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.