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Finding the Third Proportional to 455,889 and 992,051

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Solution

The third proportional to 455,889 and 992,051 is: 2,158,782.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,889 : 992,051 = 992,051 : x
  2. Step 2: Convert to fraction form
    455,889/992,051 = 992,051/x
  3. Step 3: Cross multiply
    455,889x = 992,051 × 992,051
  4. Step 4: Simplify right side
    455,889x = 984,165,186,601
  5. Step 5: Solve for x
    x = 984,165,186,601/455,889
  6. Step 6: Final answer
    x = 2,158,782.48

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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.