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Finding the Fourth Proportional to 662.16, 913.27 and 462.93

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Solution

The fourth proportional to 662.16, 913.27 and 462.93 is: 638.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.16 : 913.27 = 462.93 : x
  2. Step 2: Convert to fraction form
    662.16/913.27 = 462.93/x
  3. Step 3: Cross multiply
    662.16x = 913.27 × 462.93
  4. Step 4: Simplify right side
    662.16x = 422,773.20
  5. Step 5: Solve for x
    x = 422,773.20/662.16
  6. Step 6: Final answer
    x = 638.48

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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.