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Finding the Third Proportional to 721,928 and 1,058,268

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Solution

The third proportional to 721,928 and 1,058,268 is: 1,551,305.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,928 : 1,058,268 = 1,058,268 : x
  2. Step 2: Convert to fraction form
    721,928/1,058,268 = 1,058,268/x
  3. Step 3: Cross multiply
    721,928x = 1,058,268 × 1,058,268
  4. Step 4: Simplify right side
    721,928x = 1,119,931,159,824
  5. Step 5: Solve for x
    x = 1,119,931,159,824/721,928
  6. Step 6: Final answer
    x = 1,551,305.89

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.