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Finding the Fourth Proportional to 480.36, 721.44 and 469.44

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Solution

The fourth proportional to 480.36, 721.44 and 469.44 is: 705.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.36 : 721.44 = 469.44 : x
  2. Step 2: Convert to fraction form
    480.36/721.44 = 469.44/x
  3. Step 3: Cross multiply
    480.36x = 721.44 × 469.44
  4. Step 4: Simplify right side
    480.36x = 338,672.79
  5. Step 5: Solve for x
    x = 338,672.79/480.36
  6. Step 6: Final answer
    x = 705.04

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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.