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Finding the Fourth Proportional to 974.25, 1,461.60 and 324.99

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Solution

The fourth proportional to 974.25, 1,461.60 and 324.99 is: 487.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.25 : 1,461.60 = 324.99 : x
  2. Step 2: Convert to fraction form
    974.25/1,461.60 = 324.99/x
  3. Step 3: Cross multiply
    974.25x = 1,461.60 × 324.99
  4. Step 4: Simplify right side
    974.25x = 475,005.38
  5. Step 5: Solve for x
    x = 475,005.38/974.25
  6. Step 6: Final answer
    x = 487.56

Related Problems

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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.