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Finding the Third Proportional to 422,371.50 and 874,681.50

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Solution

The third proportional to 422,371.50 and 874,681.50 is: 1,811,362.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,371.50 : 874,681.50 = 874,681.50 : x
  2. Step 2: Convert to fraction form
    422,371.50/874,681.50 = 874,681.50/x
  3. Step 3: Cross multiply
    422,371.50x = 874,681.50 × 874,681.50
  4. Step 4: Simplify right side
    422,371.50x = 765,067,726,442.25
  5. Step 5: Solve for x
    x = 765,067,726,442.25/422,371.50
  6. Step 6: Final answer
    x = 1,811,362.10

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.