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Finding the Third Proportional to 620,907 and 936,222

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Solution

The third proportional to 620,907 and 936,222 is: 1,411,663.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,907 : 936,222 = 936,222 : x
  2. Step 2: Convert to fraction form
    620,907/936,222 = 936,222/x
  3. Step 3: Cross multiply
    620,907x = 936,222 × 936,222
  4. Step 4: Simplify right side
    620,907x = 876,511,633,284
  5. Step 5: Solve for x
    x = 876,511,633,284/620,907
  6. Step 6: Final answer
    x = 1,411,663.31

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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.