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Finding the Third Proportional to 313,536 and 477,678

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Solution

The third proportional to 313,536 and 477,678 is: 727,751.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,536 : 477,678 = 477,678 : x
  2. Step 2: Convert to fraction form
    313,536/477,678 = 477,678/x
  3. Step 3: Cross multiply
    313,536x = 477,678 × 477,678
  4. Step 4: Simplify right side
    313,536x = 228,176,271,684
  5. Step 5: Solve for x
    x = 228,176,271,684/313,536
  6. Step 6: Final answer
    x = 727,751.43

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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.