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Finding the Third Proportional to 313,446 and 477,512

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Solution

The third proportional to 313,446 and 477,512 is: 727,454.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,446 : 477,512 = 477,512 : x
  2. Step 2: Convert to fraction form
    313,446/477,512 = 477,512/x
  3. Step 3: Cross multiply
    313,446x = 477,512 × 477,512
  4. Step 4: Simplify right side
    313,446x = 228,017,710,144
  5. Step 5: Solve for x
    x = 228,017,710,144/313,446
  6. Step 6: Final answer
    x = 727,454.52

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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.