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Finding the Third Proportional to 414,290 and 907,628

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Solution

The third proportional to 414,290 and 907,628 is: 1,988,434.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,290 : 907,628 = 907,628 : x
  2. Step 2: Convert to fraction form
    414,290/907,628 = 907,628/x
  3. Step 3: Cross multiply
    414,290x = 907,628 × 907,628
  4. Step 4: Simplify right side
    414,290x = 823,788,586,384
  5. Step 5: Solve for x
    x = 823,788,586,384/414,290
  6. Step 6: Final answer
    x = 1,988,434.64

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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.