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Finding the Third Proportional to 688,931 and 1,512,367

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Solution

The third proportional to 688,931 and 1,512,367 is: 3,320,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,931 : 1,512,367 = 1,512,367 : x
  2. Step 2: Convert to fraction form
    688,931/1,512,367 = 1,512,367/x
  3. Step 3: Cross multiply
    688,931x = 1,512,367 × 1,512,367
  4. Step 4: Simplify right side
    688,931x = 2,287,253,942,689
  5. Step 5: Solve for x
    x = 2,287,253,942,689/688,931
  6. Step 6: Final answer
    x = 3,320,004.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.