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Finding the Third Proportional to 273,046 and 427,405

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Solution

The third proportional to 273,046 and 427,405 is: 669,026.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,046 : 427,405 = 427,405 : x
  2. Step 2: Convert to fraction form
    273,046/427,405 = 427,405/x
  3. Step 3: Cross multiply
    273,046x = 427,405 × 427,405
  4. Step 4: Simplify right side
    273,046x = 182,675,034,025
  5. Step 5: Solve for x
    x = 182,675,034,025/273,046
  6. Step 6: Final answer
    x = 669,026.59

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.