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Finding the Third Proportional to 998,889 and 2,157,388.50

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Solution

The third proportional to 998,889 and 2,157,388.50 is: 4,659,501.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,889 : 2,157,388.50 = 2,157,388.50 : x
  2. Step 2: Convert to fraction form
    998,889/2,157,388.50 = 2,157,388.50/x
  3. Step 3: Cross multiply
    998,889x = 2,157,388.50 × 2,157,388.50
  4. Step 4: Simplify right side
    998,889x = 4,654,325,139,932.25
  5. Step 5: Solve for x
    x = 4,654,325,139,932.25/998,889
  6. Step 6: Final answer
    x = 4,659,501.85

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.