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Finding the Fourth Proportional to 627.67, 865.65 and 441.10

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Solution

The fourth proportional to 627.67, 865.65 and 441.10 is: 608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.67 : 865.65 = 441.10 : x
  2. Step 2: Convert to fraction form
    627.67/865.65 = 441.10/x
  3. Step 3: Cross multiply
    627.67x = 865.65 × 441.10
  4. Step 4: Simplify right side
    627.67x = 381,838.22
  5. Step 5: Solve for x
    x = 381,838.22/627.67
  6. Step 6: Final answer
    x = 608.34

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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.