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Finding the Fourth Proportional to 682.52, 941.54 and 461.39

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Solution

The fourth proportional to 682.52, 941.54 and 461.39 is: 636.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.52 : 941.54 = 461.39 : x
  2. Step 2: Convert to fraction form
    682.52/941.54 = 461.39/x
  3. Step 3: Cross multiply
    682.52x = 941.54 × 461.39
  4. Step 4: Simplify right side
    682.52x = 434,410.13
  5. Step 5: Solve for x
    x = 434,410.13/682.52
  6. Step 6: Final answer
    x = 636.48

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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.