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Finding the Third Proportional to 721,936 and 1,058,280

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Solution

The third proportional to 721,936 and 1,058,280 is: 1,551,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,936 : 1,058,280 = 1,058,280 : x
  2. Step 2: Convert to fraction form
    721,936/1,058,280 = 1,058,280/x
  3. Step 3: Cross multiply
    721,936x = 1,058,280 × 1,058,280
  4. Step 4: Simplify right side
    721,936x = 1,119,956,558,400
  5. Step 5: Solve for x
    x = 1,119,956,558,400/721,936
  6. Step 6: Final answer
    x = 1,551,323.88

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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.