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Finding the Third Proportional to 227,865 and 490,789

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Solution

The third proportional to 227,865 and 490,789 is: 1,057,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,865 : 490,789 = 490,789 : x
  2. Step 2: Convert to fraction form
    227,865/490,789 = 490,789/x
  3. Step 3: Cross multiply
    227,865x = 490,789 × 490,789
  4. Step 4: Simplify right side
    227,865x = 240,873,842,521
  5. Step 5: Solve for x
    x = 240,873,842,521/227,865
  6. Step 6: Final answer
    x = 1,057,090.13

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.