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Finding the Third Proportional to 628,126.88 and 1,375,876.13

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Solution

The third proportional to 628,126.88 and 1,375,876.13 is: 3,013,778.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,126.88 : 1,375,876.13 = 1,375,876.13 : x
  2. Step 2: Convert to fraction form
    628,126.88/1,375,876.13 = 1,375,876.13/x
  3. Step 3: Cross multiply
    628,126.88x = 1,375,876.13 × 1,375,876.13
  4. Step 4: Simplify right side
    628,126.88x = 1,893,035,111,345.02
  5. Step 5: Solve for x
    x = 1,893,035,111,345.02/628,126.88
  6. Step 6: Final answer
    x = 3,013,778.25

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.