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Finding the Third Proportional to 638,532 and 1,373,929

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Solution

The third proportional to 638,532 and 1,373,929 is: 2,956,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,532 : 1,373,929 = 1,373,929 : x
  2. Step 2: Convert to fraction form
    638,532/1,373,929 = 1,373,929/x
  3. Step 3: Cross multiply
    638,532x = 1,373,929 × 1,373,929
  4. Step 4: Simplify right side
    638,532x = 1,887,680,897,041
  5. Step 5: Solve for x
    x = 1,887,680,897,041/638,532
  6. Step 6: Final answer
    x = 2,956,282.37

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.