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Finding the Third Proportional to 719.72 and 1,523.81

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Solution

The third proportional to 719.72 and 1,523.81 is: 3,226.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.72 : 1,523.81 = 1,523.81 : x
  2. Step 2: Convert to fraction form
    719.72/1,523.81 = 1,523.81/x
  3. Step 3: Cross multiply
    719.72x = 1,523.81 × 1,523.81
  4. Step 4: Simplify right side
    719.72x = 2,322,004.54
  5. Step 5: Solve for x
    x = 2,322,004.54/719.72
  6. Step 6: Final answer
    x = 3,226.27

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.