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Finding the Third Proportional to 329,310 and 684,459

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Solution

The third proportional to 329,310 and 684,459 is: 1,422,623.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,310 : 684,459 = 684,459 : x
  2. Step 2: Convert to fraction form
    329,310/684,459 = 684,459/x
  3. Step 3: Cross multiply
    329,310x = 684,459 × 684,459
  4. Step 4: Simplify right side
    329,310x = 468,484,122,681
  5. Step 5: Solve for x
    x = 468,484,122,681/329,310
  6. Step 6: Final answer
    x = 1,422,623.43

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.