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Finding the Third Proportional to 383,411 and 806,482

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Solution

The third proportional to 383,411 and 806,482 is: 1,696,386.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,411 : 806,482 = 806,482 : x
  2. Step 2: Convert to fraction form
    383,411/806,482 = 806,482/x
  3. Step 3: Cross multiply
    383,411x = 806,482 × 806,482
  4. Step 4: Simplify right side
    383,411x = 650,413,216,324
  5. Step 5: Solve for x
    x = 650,413,216,324/383,411
  6. Step 6: Final answer
    x = 1,696,386.43

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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.