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Finding the Third Proportional to 336,279 and 728,550

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Solution

The third proportional to 336,279 and 728,550 is: 1,578,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,279 : 728,550 = 728,550 : x
  2. Step 2: Convert to fraction form
    336,279/728,550 = 728,550/x
  3. Step 3: Cross multiply
    336,279x = 728,550 × 728,550
  4. Step 4: Simplify right side
    336,279x = 530,785,102,500
  5. Step 5: Solve for x
    x = 530,785,102,500/336,279
  6. Step 6: Final answer
    x = 1,578,406.93

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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.