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Finding the Third Proportional to 456,899.25 and 990,069.75

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Solution

The third proportional to 456,899.25 and 990,069.75 is: 2,145,414.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,899.25 : 990,069.75 = 990,069.75 : x
  2. Step 2: Convert to fraction form
    456,899.25/990,069.75 = 990,069.75/x
  3. Step 3: Cross multiply
    456,899.25x = 990,069.75 × 990,069.75
  4. Step 4: Simplify right side
    456,899.25x = 980,238,109,865.06
  5. Step 5: Solve for x
    x = 980,238,109,865.06/456,899.25
  6. Step 6: Final answer
    x = 2,145,414.14

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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.