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Finding the Third Proportional to 318,437 and 464,529

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Solution

The third proportional to 318,437 and 464,529 is: 677,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,437 : 464,529 = 464,529 : x
  2. Step 2: Convert to fraction form
    318,437/464,529 = 464,529/x
  3. Step 3: Cross multiply
    318,437x = 464,529 × 464,529
  4. Step 4: Simplify right side
    318,437x = 215,787,191,841
  5. Step 5: Solve for x
    x = 215,787,191,841/318,437
  6. Step 6: Final answer
    x = 677,644.85

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.