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Finding the Third Proportional to 549,261 and 831,636

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Solution

The third proportional to 549,261 and 831,636 is: 1,259,179.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,261 : 831,636 = 831,636 : x
  2. Step 2: Convert to fraction form
    549,261/831,636 = 831,636/x
  3. Step 3: Cross multiply
    549,261x = 831,636 × 831,636
  4. Step 4: Simplify right side
    549,261x = 691,618,436,496
  5. Step 5: Solve for x
    x = 691,618,436,496/549,261
  6. Step 6: Final answer
    x = 1,259,179.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.