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Finding the Third Proportional to 318,048 and 477,072

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Solution

The third proportional to 318,048 and 477,072 is: 715,608

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,048 : 477,072 = 477,072 : x
  2. Step 2: Convert to fraction form
    318,048/477,072 = 477,072/x
  3. Step 3: Cross multiply
    318,048x = 477,072 × 477,072
  4. Step 4: Simplify right side
    318,048x = 227,597,693,184
  5. Step 5: Solve for x
    x = 227,597,693,184/318,048
  6. Step 6: Final answer
    x = 715,608

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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.