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Finding the Fourth Proportional to 483.22, 720.66 and 450.42

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Solution

The fourth proportional to 483.22, 720.66 and 450.42 is: 671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.22 : 720.66 = 450.42 : x
  2. Step 2: Convert to fraction form
    483.22/720.66 = 450.42/x
  3. Step 3: Cross multiply
    483.22x = 720.66 × 450.42
  4. Step 4: Simplify right side
    483.22x = 324,599.68
  5. Step 5: Solve for x
    x = 324,599.68/483.22
  6. Step 6: Final answer
    x = 671.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.