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Finding the Third Proportional to 449,740 and 683,817

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Solution

The third proportional to 449,740 and 683,817 is: 1,039,724.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,740 : 683,817 = 683,817 : x
  2. Step 2: Convert to fraction form
    449,740/683,817 = 683,817/x
  3. Step 3: Cross multiply
    449,740x = 683,817 × 683,817
  4. Step 4: Simplify right side
    449,740x = 467,605,689,489
  5. Step 5: Solve for x
    x = 467,605,689,489/449,740
  6. Step 6: Final answer
    x = 1,039,724.48

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.