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Finding the Third Proportional to 417,446 and 909,880

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Solution

The third proportional to 417,446 and 909,880 is: 1,983,206.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,446 : 909,880 = 909,880 : x
  2. Step 2: Convert to fraction form
    417,446/909,880 = 909,880/x
  3. Step 3: Cross multiply
    417,446x = 909,880 × 909,880
  4. Step 4: Simplify right side
    417,446x = 827,881,614,400
  5. Step 5: Solve for x
    x = 827,881,614,400/417,446
  6. Step 6: Final answer
    x = 1,983,206.49

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.