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Finding the Third Proportional to 728,388 and 1,485,666

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Solution

The third proportional to 728,388 and 1,485,666 is: 3,030,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,388 : 1,485,666 = 1,485,666 : x
  2. Step 2: Convert to fraction form
    728,388/1,485,666 = 1,485,666/x
  3. Step 3: Cross multiply
    728,388x = 1,485,666 × 1,485,666
  4. Step 4: Simplify right side
    728,388x = 2,207,203,463,556
  5. Step 5: Solve for x
    x = 2,207,203,463,556/728,388
  6. Step 6: Final answer
    x = 3,030,257.86

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.