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Finding the Fourth Proportional to 681.44, 940.17 and 471.37

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Solution

The fourth proportional to 681.44, 940.17 and 471.37 is: 650.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.44 : 940.17 = 471.37 : x
  2. Step 2: Convert to fraction form
    681.44/940.17 = 471.37/x
  3. Step 3: Cross multiply
    681.44x = 940.17 × 471.37
  4. Step 4: Simplify right side
    681.44x = 443,167.93
  5. Step 5: Solve for x
    x = 443,167.93/681.44
  6. Step 6: Final answer
    x = 650.34

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.