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Finding the Fourth Proportional to 615.60, 844.73 and 560.12

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Solution

The fourth proportional to 615.60, 844.73 and 560.12 is: 768.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    615.60 : 844.73 = 560.12 : x
  2. Step 2: Convert to fraction form
    615.60/844.73 = 560.12/x
  3. Step 3: Cross multiply
    615.60x = 844.73 × 560.12
  4. Step 4: Simplify right side
    615.60x = 473,145.24
  5. Step 5: Solve for x
    x = 473,145.24/615.60
  6. Step 6: Final answer
    x = 768.59

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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.