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Finding the Fourth Proportional to 627.44, 941.48 and 490.76

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Solution

The fourth proportional to 627.44, 941.48 and 490.76 is: 736.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.44 : 941.48 = 490.76 : x
  2. Step 2: Convert to fraction form
    627.44/941.48 = 490.76/x
  3. Step 3: Cross multiply
    627.44x = 941.48 × 490.76
  4. Step 4: Simplify right side
    627.44x = 462,040.72
  5. Step 5: Solve for x
    x = 462,040.72/627.44
  6. Step 6: Final answer
    x = 736.39

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.