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Finding the Fourth Proportional to 671.03, 926.30 and 461.12

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Solution

The fourth proportional to 671.03, 926.30 and 461.12 is: 636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.03 : 926.30 = 461.12 : x
  2. Step 2: Convert to fraction form
    671.03/926.30 = 461.12/x
  3. Step 3: Cross multiply
    671.03x = 926.30 × 461.12
  4. Step 4: Simplify right side
    671.03x = 427,133.15
  5. Step 5: Solve for x
    x = 427,133.15/671.03
  6. Step 6: Final answer
    x = 636.54

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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.