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Finding the Fourth Proportional to 681.48, 939.96 and 598.41

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Solution

The fourth proportional to 681.48, 939.96 and 598.41 is: 825.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    681.48 : 939.96 = 598.41 : x
  2. Step 2: Convert to fraction form
    681.48/939.96 = 598.41/x
  3. Step 3: Cross multiply
    681.48x = 939.96 × 598.41
  4. Step 4: Simplify right side
    681.48x = 562,481.46
  5. Step 5: Solve for x
    x = 562,481.46/681.48
  6. Step 6: Final answer
    x = 825.38

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Double scale
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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.