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Finding the Fourth Proportional to 617.58, 925.02 and 613.44

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Solution

The fourth proportional to 617.58, 925.02 and 613.44 is: 918.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.58 : 925.02 = 613.44 : x
  2. Step 2: Convert to fraction form
    617.58/925.02 = 613.44/x
  3. Step 3: Cross multiply
    617.58x = 925.02 × 613.44
  4. Step 4: Simplify right side
    617.58x = 567,444.27
  5. Step 5: Solve for x
    x = 567,444.27/617.58
  6. Step 6: Final answer
    x = 918.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.