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Finding the Third Proportional to 408,090 and 882,666

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Solution

The third proportional to 408,090 and 882,666 is: 1,909,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,090 : 882,666 = 882,666 : x
  2. Step 2: Convert to fraction form
    408,090/882,666 = 882,666/x
  3. Step 3: Cross multiply
    408,090x = 882,666 × 882,666
  4. Step 4: Simplify right side
    408,090x = 779,099,267,556
  5. Step 5: Solve for x
    x = 779,099,267,556/408,090
  6. Step 6: Final answer
    x = 1,909,135.90

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.