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Finding the Third Proportional to 422,368.75 and 919,095.50

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Solution

The third proportional to 422,368.75 and 919,095.50 is: 1,999,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,368.75 : 919,095.50 = 919,095.50 : x
  2. Step 2: Convert to fraction form
    422,368.75/919,095.50 = 919,095.50/x
  3. Step 3: Cross multiply
    422,368.75x = 919,095.50 × 919,095.50
  4. Step 4: Simplify right side
    422,368.75x = 844,736,538,120.25
  5. Step 5: Solve for x
    x = 844,736,538,120.25/422,368.75
  6. Step 6: Final answer
    x = 1,999,997.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.