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Finding the Fourth Proportional to 662.27, 992.70 and 480.51

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Solution

The fourth proportional to 662.27, 992.70 and 480.51 is: 720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.27 : 992.70 = 480.51 : x
  2. Step 2: Convert to fraction form
    662.27/992.70 = 480.51/x
  3. Step 3: Cross multiply
    662.27x = 992.70 × 480.51
  4. Step 4: Simplify right side
    662.27x = 477,002.28
  5. Step 5: Solve for x
    x = 477,002.28/662.27
  6. Step 6: Final answer
    x = 720.26

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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.