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Finding the Fourth Proportional to 667.27, 995.14 and 570.39

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Solution

The fourth proportional to 667.27, 995.14 and 570.39 is: 850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    667.27 : 995.14 = 570.39 : x
  2. Step 2: Convert to fraction form
    667.27/995.14 = 570.39/x
  3. Step 3: Cross multiply
    667.27x = 995.14 × 570.39
  4. Step 4: Simplify right side
    667.27x = 567,617.90
  5. Step 5: Solve for x
    x = 567,617.90/667.27
  6. Step 6: Final answer
    x = 850.66

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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.