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Finding the Fourth Proportional to 667.24, 995.92 and 626.20

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Solution

The fourth proportional to 667.24, 995.92 and 626.20 is: 934.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.24 : 995.92 = 626.20 : x
  2. Step 2: Convert to fraction form
    667.24/995.92 = 626.20/x
  3. Step 3: Cross multiply
    667.24x = 995.92 × 626.20
  4. Step 4: Simplify right side
    667.24x = 623,641.05
  5. Step 5: Solve for x
    x = 623,641.05/667.24
  6. Step 6: Final answer
    x = 934.66

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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.