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Finding the Fourth Proportional to 659.52, 984.60 and 636.66

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Solution

The fourth proportional to 659.52, 984.60 and 636.66 is: 950.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    659.52 : 984.60 = 636.66 : x
  2. Step 2: Convert to fraction form
    659.52/984.60 = 636.66/x
  3. Step 3: Cross multiply
    659.52x = 984.60 × 636.66
  4. Step 4: Simplify right side
    659.52x = 626,855.44
  5. Step 5: Solve for x
    x = 626,855.44/659.52
  6. Step 6: Final answer
    x = 950.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.