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Finding the Third Proportional to 408,082 and 889,632

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Solution

The third proportional to 408,082 and 889,632 is: 1,939,426.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,082 : 889,632 = 889,632 : x
  2. Step 2: Convert to fraction form
    408,082/889,632 = 889,632/x
  3. Step 3: Cross multiply
    408,082x = 889,632 × 889,632
  4. Step 4: Simplify right side
    408,082x = 791,445,095,424
  5. Step 5: Solve for x
    x = 791,445,095,424/408,082
  6. Step 6: Final answer
    x = 1,939,426.62

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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.