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Finding the Third Proportional to 336,699 and 720,690

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Solution

The third proportional to 336,699 and 720,690 is: 1,542,606.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,699 : 720,690 = 720,690 : x
  2. Step 2: Convert to fraction form
    336,699/720,690 = 720,690/x
  3. Step 3: Cross multiply
    336,699x = 720,690 × 720,690
  4. Step 4: Simplify right side
    336,699x = 519,394,076,100
  5. Step 5: Solve for x
    x = 519,394,076,100/336,699
  6. Step 6: Final answer
    x = 1,542,606.53

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.