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Finding the Third Proportional to 203,889 and 479,710

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Solution

The third proportional to 203,889 and 479,710 is: 1,128,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,889 : 479,710 = 479,710 : x
  2. Step 2: Convert to fraction form
    203,889/479,710 = 479,710/x
  3. Step 3: Cross multiply
    203,889x = 479,710 × 479,710
  4. Step 4: Simplify right side
    203,889x = 230,121,684,100
  5. Step 5: Solve for x
    x = 230,121,684,100/203,889
  6. Step 6: Final answer
    x = 1,128,661.60

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.