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Finding the Third Proportional to 447,248 and 676,688

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Solution

The third proportional to 447,248 and 676,688 is: 1,023,831.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,248 : 676,688 = 676,688 : x
  2. Step 2: Convert to fraction form
    447,248/676,688 = 676,688/x
  3. Step 3: Cross multiply
    447,248x = 676,688 × 676,688
  4. Step 4: Simplify right side
    447,248x = 457,906,649,344
  5. Step 5: Solve for x
    x = 457,906,649,344/447,248
  6. Step 6: Final answer
    x = 1,023,831.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.