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Finding the Third Proportional to 386,284.50 and 839,067.75

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Solution

The third proportional to 386,284.50 and 839,067.75 is: 1,822,580.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,284.50 : 839,067.75 = 839,067.75 : x
  2. Step 2: Convert to fraction form
    386,284.50/839,067.75 = 839,067.75/x
  3. Step 3: Cross multiply
    386,284.50x = 839,067.75 × 839,067.75
  4. Step 4: Simplify right side
    386,284.50x = 704,034,689,090.06
  5. Step 5: Solve for x
    x = 704,034,689,090.06/386,284.50
  6. Step 6: Final answer
    x = 1,822,580.74

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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.