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Finding the Third Proportional to 323,397 and 680,307.19

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Solution

The third proportional to 323,397 and 680,307.19 is: 1,431,113.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,397 : 680,307.19 = 680,307.19 : x
  2. Step 2: Convert to fraction form
    323,397/680,307.19 = 680,307.19/x
  3. Step 3: Cross multiply
    323,397x = 680,307.19 × 680,307.19
  4. Step 4: Simplify right side
    323,397x = 462,817,869,364.16
  5. Step 5: Solve for x
    x = 462,817,869,364.16/323,397
  6. Step 6: Final answer
    x = 1,431,113.68

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.