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Finding the Third Proportional to 422,145.75 and 861,483.75

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Solution

The third proportional to 422,145.75 and 861,483.75 is: 1,758,052.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,145.75 : 861,483.75 = 861,483.75 : x
  2. Step 2: Convert to fraction form
    422,145.75/861,483.75 = 861,483.75/x
  3. Step 3: Cross multiply
    422,145.75x = 861,483.75 × 861,483.75
  4. Step 4: Simplify right side
    422,145.75x = 742,154,251,514.06
  5. Step 5: Solve for x
    x = 742,154,251,514.06/422,145.75
  6. Step 6: Final answer
    x = 1,758,052.17

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.