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Finding the Fourth Proportional to 668.28, 922.32 and 482.37

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Solution

The fourth proportional to 668.28, 922.32 and 482.37 is: 665.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.28 : 922.32 = 482.37 : x
  2. Step 2: Convert to fraction form
    668.28/922.32 = 482.37/x
  3. Step 3: Cross multiply
    668.28x = 922.32 × 482.37
  4. Step 4: Simplify right side
    668.28x = 444,899.50
  5. Step 5: Solve for x
    x = 444,899.50/668.28
  6. Step 6: Final answer
    x = 665.74

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Half scale
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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.