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Finding the Third Proportional to 407,146 and 889,722

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Solution

The third proportional to 407,146 and 889,722 is: 1,944,278.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,146 : 889,722 = 889,722 : x
  2. Step 2: Convert to fraction form
    407,146/889,722 = 889,722/x
  3. Step 3: Cross multiply
    407,146x = 889,722 × 889,722
  4. Step 4: Simplify right side
    407,146x = 791,605,237,284
  5. Step 5: Solve for x
    x = 791,605,237,284/407,146
  6. Step 6: Final answer
    x = 1,944,278.56

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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.