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Finding the Third Proportional to 314,568 and 684,432

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Solution

The third proportional to 314,568 and 684,432 is: 1,489,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,568 : 684,432 = 684,432 : x
  2. Step 2: Convert to fraction form
    314,568/684,432 = 684,432/x
  3. Step 3: Cross multiply
    314,568x = 684,432 × 684,432
  4. Step 4: Simplify right side
    314,568x = 468,447,162,624
  5. Step 5: Solve for x
    x = 468,447,162,624/314,568
  6. Step 6: Final answer
    x = 1,489,176.15

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.