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Finding the Fourth Proportional to 627.08, 939.40 and 462.26

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Solution

The fourth proportional to 627.08, 939.40 and 462.26 is: 692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.08 : 939.40 = 462.26 : x
  2. Step 2: Convert to fraction form
    627.08/939.40 = 462.26/x
  3. Step 3: Cross multiply
    627.08x = 939.40 × 462.26
  4. Step 4: Simplify right side
    627.08x = 434,247.04
  5. Step 5: Solve for x
    x = 434,247.04/627.08
  6. Step 6: Final answer
    x = 692.49

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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.