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Finding the Third Proportional to 620,619 and 948,979

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Solution

The third proportional to 620,619 and 948,979 is: 1,451,069.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,619 : 948,979 = 948,979 : x
  2. Step 2: Convert to fraction form
    620,619/948,979 = 948,979/x
  3. Step 3: Cross multiply
    620,619x = 948,979 × 948,979
  4. Step 4: Simplify right side
    620,619x = 900,561,142,441
  5. Step 5: Solve for x
    x = 900,561,142,441/620,619
  6. Step 6: Final answer
    x = 1,451,069.24

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.