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Finding the Third Proportional to 722.81 and 1,612.69

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Solution

The third proportional to 722.81 and 1,612.69 is: 3,598.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.81 : 1,612.69 = 1,612.69 : x
  2. Step 2: Convert to fraction form
    722.81/1,612.69 = 1,612.69/x
  3. Step 3: Cross multiply
    722.81x = 1,612.69 × 1,612.69
  4. Step 4: Simplify right side
    722.81x = 2,600,760.97
  5. Step 5: Solve for x
    x = 2,600,760.97/722.81
  6. Step 6: Final answer
    x = 3,598.11

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.