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Finding the Third Proportional to 403,055 and 879,790

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Solution

The third proportional to 403,055 and 879,790 is: 1,920,408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,055 : 879,790 = 879,790 : x
  2. Step 2: Convert to fraction form
    403,055/879,790 = 879,790/x
  3. Step 3: Cross multiply
    403,055x = 879,790 × 879,790
  4. Step 4: Simplify right side
    403,055x = 774,030,444,100
  5. Step 5: Solve for x
    x = 774,030,444,100/403,055
  6. Step 6: Final answer
    x = 1,920,408.99

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.