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Finding the Third Proportional to 829,131 and 1,243,454

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Solution

The third proportional to 829,131 and 1,243,454 is: 1,864,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,131 : 1,243,454 = 1,243,454 : x
  2. Step 2: Convert to fraction form
    829,131/1,243,454 = 1,243,454/x
  3. Step 3: Cross multiply
    829,131x = 1,243,454 × 1,243,454
  4. Step 4: Simplify right side
    829,131x = 1,546,177,850,116
  5. Step 5: Solve for x
    x = 1,546,177,850,116/829,131
  6. Step 6: Final answer
    x = 1,864,817.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.