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Finding the Third Proportional to 336,186 and 728,376

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Solution

The third proportional to 336,186 and 728,376 is: 1,578,089.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,186 : 728,376 = 728,376 : x
  2. Step 2: Convert to fraction form
    336,186/728,376 = 728,376/x
  3. Step 3: Cross multiply
    336,186x = 728,376 × 728,376
  4. Step 4: Simplify right side
    336,186x = 530,531,597,376
  5. Step 5: Solve for x
    x = 530,531,597,376/336,186
  6. Step 6: Final answer
    x = 1,578,089.50

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.