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Finding the Third Proportional to 405,362 and 888,556

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Solution

The third proportional to 405,362 and 888,556 is: 1,947,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,362 : 888,556 = 888,556 : x
  2. Step 2: Convert to fraction form
    405,362/888,556 = 888,556/x
  3. Step 3: Cross multiply
    405,362x = 888,556 × 888,556
  4. Step 4: Simplify right side
    405,362x = 789,531,765,136
  5. Step 5: Solve for x
    x = 789,531,765,136/405,362
  6. Step 6: Final answer
    x = 1,947,720.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.