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Finding the Third Proportional to 412,630 and 903,991

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Solution

The third proportional to 412,630 and 903,991 is: 1,980,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,630 : 903,991 = 903,991 : x
  2. Step 2: Convert to fraction form
    412,630/903,991 = 903,991/x
  3. Step 3: Cross multiply
    412,630x = 903,991 × 903,991
  4. Step 4: Simplify right side
    412,630x = 817,199,728,081
  5. Step 5: Solve for x
    x = 817,199,728,081/412,630
  6. Step 6: Final answer
    x = 1,980,466.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.