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Finding the Third Proportional to 428,857.03 and 914,712.75

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Solution

The third proportional to 428,857.03 and 914,712.75 is: 1,950,998.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,857.03 : 914,712.75 = 914,712.75 : x
  2. Step 2: Convert to fraction form
    428,857.03/914,712.75 = 914,712.75/x
  3. Step 3: Cross multiply
    428,857.03x = 914,712.75 × 914,712.75
  4. Step 4: Simplify right side
    428,857.03x = 836,699,415,012.56
  5. Step 5: Solve for x
    x = 836,699,415,012.56/428,857.03
  6. Step 6: Final answer
    x = 1,950,998.48

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.