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Finding the Third Proportional to 314,624 and 684,536

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Solution

The third proportional to 314,624 and 684,536 is: 1,489,363.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,624 : 684,536 = 684,536 : x
  2. Step 2: Convert to fraction form
    314,624/684,536 = 684,536/x
  3. Step 3: Cross multiply
    314,624x = 684,536 × 684,536
  4. Step 4: Simplify right side
    314,624x = 468,589,535,296
  5. Step 5: Solve for x
    x = 468,589,535,296/314,624
  6. Step 6: Final answer
    x = 1,489,363.61

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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.