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Finding the Fourth Proportional to 630.73, 945.97 and 396.36

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Solution

The fourth proportional to 630.73, 945.97 and 396.36 is: 594.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.73 : 945.97 = 396.36 : x
  2. Step 2: Convert to fraction form
    630.73/945.97 = 396.36/x
  3. Step 3: Cross multiply
    630.73x = 945.97 × 396.36
  4. Step 4: Simplify right side
    630.73x = 374,943.12
  5. Step 5: Solve for x
    x = 374,943.12/630.73
  6. Step 6: Final answer
    x = 594.46

Related Problems

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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.