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Finding the Third Proportional to 363,894 and 789,640

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Solution

The third proportional to 363,894 and 789,640 is: 1,713,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,894 : 789,640 = 789,640 : x
  2. Step 2: Convert to fraction form
    363,894/789,640 = 789,640/x
  3. Step 3: Cross multiply
    363,894x = 789,640 × 789,640
  4. Step 4: Simplify right side
    363,894x = 623,531,329,600
  5. Step 5: Solve for x
    x = 623,531,329,600/363,894
  6. Step 6: Final answer
    x = 1,713,497.14

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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.