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Finding the Fourth Proportional to 976.67, 1,464.99 and 327.41

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Solution

The fourth proportional to 976.67, 1,464.99 and 327.41 is: 491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    976.67 : 1,464.99 = 327.41 : x
  2. Step 2: Convert to fraction form
    976.67/1,464.99 = 327.41/x
  3. Step 3: Cross multiply
    976.67x = 1,464.99 × 327.41
  4. Step 4: Simplify right side
    976.67x = 479,645.05
  5. Step 5: Solve for x
    x = 479,645.05/976.67
  6. Step 6: Final answer
    x = 491.10

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Double scale
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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.