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Finding the Fourth Proportional to 974.80, 1,462.28 and 325.52

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Solution

The fourth proportional to 974.80, 1,462.28 and 325.52 is: 488.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.80 : 1,462.28 = 325.52 : x
  2. Step 2: Convert to fraction form
    974.80/1,462.28 = 325.52/x
  3. Step 3: Cross multiply
    974.80x = 1,462.28 × 325.52
  4. Step 4: Simplify right side
    974.80x = 476,001.39
  5. Step 5: Solve for x
    x = 476,001.39/974.80
  6. Step 6: Final answer
    x = 488.31

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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.