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Finding the Third Proportional to 378,807.25 and 841,690.75

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Solution

The third proportional to 378,807.25 and 841,690.75 is: 1,870,194.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,807.25 : 841,690.75 = 841,690.75 : x
  2. Step 2: Convert to fraction form
    378,807.25/841,690.75 = 841,690.75/x
  3. Step 3: Cross multiply
    378,807.25x = 841,690.75 × 841,690.75
  4. Step 4: Simplify right side
    378,807.25x = 708,443,318,635.56
  5. Step 5: Solve for x
    x = 708,443,318,635.56/378,807.25
  6. Step 6: Final answer
    x = 1,870,194.72

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.