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Finding the Third Proportional to 622,629 and 939,662

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Solution

The third proportional to 622,629 and 939,662 is: 1,418,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,629 : 939,662 = 939,662 : x
  2. Step 2: Convert to fraction form
    622,629/939,662 = 939,662/x
  3. Step 3: Cross multiply
    622,629x = 939,662 × 939,662
  4. Step 4: Simplify right side
    622,629x = 882,964,674,244
  5. Step 5: Solve for x
    x = 882,964,674,244/622,629
  6. Step 6: Final answer
    x = 1,418,123.27

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.