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Finding the Fourth Proportional to 682.06, 941.61 and 469.68

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Solution

The fourth proportional to 682.06, 941.61 and 469.68 is: 648.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    682.06 : 941.61 = 469.68 : x
  2. Step 2: Convert to fraction form
    682.06/941.61 = 469.68/x
  3. Step 3: Cross multiply
    682.06x = 941.61 × 469.68
  4. Step 4: Simplify right side
    682.06x = 442,255.38
  5. Step 5: Solve for x
    x = 442,255.38/682.06
  6. Step 6: Final answer
    x = 648.41

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.