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Finding the Third Proportional to 453,417 and 989,925

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Solution

The third proportional to 453,417 and 989,925 is: 2,161,258.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,417 : 989,925 = 989,925 : x
  2. Step 2: Convert to fraction form
    453,417/989,925 = 989,925/x
  3. Step 3: Cross multiply
    453,417x = 989,925 × 989,925
  4. Step 4: Simplify right side
    453,417x = 979,951,505,625
  5. Step 5: Solve for x
    x = 979,951,505,625/453,417
  6. Step 6: Final answer
    x = 2,161,258.85

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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.