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Finding the Fourth Proportional to 650.57, 974.91 and 325.49

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Solution

The fourth proportional to 650.57, 974.91 and 325.49 is: 487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.57 : 974.91 = 325.49 : x
  2. Step 2: Convert to fraction form
    650.57/974.91 = 325.49/x
  3. Step 3: Cross multiply
    650.57x = 974.91 × 325.49
  4. Step 4: Simplify right side
    650.57x = 317,323.46
  5. Step 5: Solve for x
    x = 317,323.46/650.57
  6. Step 6: Final answer
    x = 487.76

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.