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Finding the Third Proportional to 612,170 and 1,329,176

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Solution

The third proportional to 612,170 and 1,329,176 is: 2,885,977.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,170 : 1,329,176 = 1,329,176 : x
  2. Step 2: Convert to fraction form
    612,170/1,329,176 = 1,329,176/x
  3. Step 3: Cross multiply
    612,170x = 1,329,176 × 1,329,176
  4. Step 4: Simplify right side
    612,170x = 1,766,708,838,976
  5. Step 5: Solve for x
    x = 1,766,708,838,976/612,170
  6. Step 6: Final answer
    x = 2,885,977.49

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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.