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Finding the Third Proportional to 672,767 and 1,121,237

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Solution

The third proportional to 672,767 and 1,121,237 is: 1,868,659.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,767 : 1,121,237 = 1,121,237 : x
  2. Step 2: Convert to fraction form
    672,767/1,121,237 = 1,121,237/x
  3. Step 3: Cross multiply
    672,767x = 1,121,237 × 1,121,237
  4. Step 4: Simplify right side
    672,767x = 1,257,172,410,169
  5. Step 5: Solve for x
    x = 1,257,172,410,169/672,767
  6. Step 6: Final answer
    x = 1,868,659.45

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Why These Related Problems?

These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.