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Finding the Fourth Proportional to 615.68, 849.04 and 550.88

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Solution

The fourth proportional to 615.68, 849.04 and 550.88 is: 759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.68 : 849.04 = 550.88 : x
  2. Step 2: Convert to fraction form
    615.68/849.04 = 550.88/x
  3. Step 3: Cross multiply
    615.68x = 849.04 × 550.88
  4. Step 4: Simplify right side
    615.68x = 467,719.16
  5. Step 5: Solve for x
    x = 467,719.16/615.68
  6. Step 6: Final answer
    x = 759.68

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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.