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Finding the Third Proportional to 312,282 and 671,926

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Solution

The third proportional to 312,282 and 671,926 is: 1,445,759.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,282 : 671,926 = 671,926 : x
  2. Step 2: Convert to fraction form
    312,282/671,926 = 671,926/x
  3. Step 3: Cross multiply
    312,282x = 671,926 × 671,926
  4. Step 4: Simplify right side
    312,282x = 451,484,549,476
  5. Step 5: Solve for x
    x = 451,484,549,476/312,282
  6. Step 6: Final answer
    x = 1,445,759.12

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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.