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Finding the Fourth Proportional to 615.12, 927.28 and 575.44

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Solution

The fourth proportional to 615.12, 927.28 and 575.44 is: 867.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.12 : 927.28 = 575.44 : x
  2. Step 2: Convert to fraction form
    615.12/927.28 = 575.44/x
  3. Step 3: Cross multiply
    615.12x = 927.28 × 575.44
  4. Step 4: Simplify right side
    615.12x = 533,594.00
  5. Step 5: Solve for x
    x = 533,594.00/615.12
  6. Step 6: Final answer
    x = 867.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.