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Finding the Third Proportional to 455,894 and 992,057

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Solution

The third proportional to 455,894 and 992,057 is: 2,158,784.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,894 : 992,057 = 992,057 : x
  2. Step 2: Convert to fraction form
    455,894/992,057 = 992,057/x
  3. Step 3: Cross multiply
    455,894x = 992,057 × 992,057
  4. Step 4: Simplify right side
    455,894x = 984,177,091,249
  5. Step 5: Solve for x
    x = 984,177,091,249/455,894
  6. Step 6: Final answer
    x = 2,158,784.92

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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.