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Finding the Third Proportional to 291,660 and 449,914

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Solution

The third proportional to 291,660 and 449,914 is: 694,036.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,660 : 449,914 = 449,914 : x
  2. Step 2: Convert to fraction form
    291,660/449,914 = 449,914/x
  3. Step 3: Cross multiply
    291,660x = 449,914 × 449,914
  4. Step 4: Simplify right side
    291,660x = 202,422,607,396
  5. Step 5: Solve for x
    x = 202,422,607,396/291,660
  6. Step 6: Final answer
    x = 694,036.23

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.