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Finding the Third Proportional to 336,110 and 520,690

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Solution

The third proportional to 336,110 and 520,690 is: 806,634.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,110 : 520,690 = 520,690 : x
  2. Step 2: Convert to fraction form
    336,110/520,690 = 520,690/x
  3. Step 3: Cross multiply
    336,110x = 520,690 × 520,690
  4. Step 4: Simplify right side
    336,110x = 271,118,076,100
  5. Step 5: Solve for x
    x = 271,118,076,100/336,110
  6. Step 6: Final answer
    x = 806,634.96

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.