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Finding the Third Proportional to 315,512 and 684,253

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Solution

The third proportional to 315,512 and 684,253 is: 1,483,944.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,512 : 684,253 = 684,253 : x
  2. Step 2: Convert to fraction form
    315,512/684,253 = 684,253/x
  3. Step 3: Cross multiply
    315,512x = 684,253 × 684,253
  4. Step 4: Simplify right side
    315,512x = 468,202,168,009
  5. Step 5: Solve for x
    x = 468,202,168,009/315,512
  6. Step 6: Final answer
    x = 1,483,944.09

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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.