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Finding the Third Proportional to 455,061 and 989,544

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Solution

The third proportional to 455,061 and 989,544 is: 2,151,793.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,061 : 989,544 = 989,544 : x
  2. Step 2: Convert to fraction form
    455,061/989,544 = 989,544/x
  3. Step 3: Cross multiply
    455,061x = 989,544 × 989,544
  4. Step 4: Simplify right side
    455,061x = 979,197,327,936
  5. Step 5: Solve for x
    x = 979,197,327,936/455,061
  6. Step 6: Final answer
    x = 2,151,793.56

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.