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Finding the Third Proportional to 378,813 and 841,710

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Solution

The third proportional to 378,813 and 841,710 is: 1,870,251.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,813 : 841,710 = 841,710 : x
  2. Step 2: Convert to fraction form
    378,813/841,710 = 841,710/x
  3. Step 3: Cross multiply
    378,813x = 841,710 × 841,710
  4. Step 4: Simplify right side
    378,813x = 708,475,724,100
  5. Step 5: Solve for x
    x = 708,475,724,100/378,813
  6. Step 6: Final answer
    x = 1,870,251.88

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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.