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Finding the Fourth Proportional to 664.99, 996.27 and 481.93

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Solution

The fourth proportional to 664.99, 996.27 and 481.93 is: 722.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    664.99 : 996.27 = 481.93 : x
  2. Step 2: Convert to fraction form
    664.99/996.27 = 481.93/x
  3. Step 3: Cross multiply
    664.99x = 996.27 × 481.93
  4. Step 4: Simplify right side
    664.99x = 480,128.10
  5. Step 5: Solve for x
    x = 480,128.10/664.99
  6. Step 6: Final answer
    x = 722.01

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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.