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Finding the Third Proportional to 403,091 and 879,862

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Solution

The third proportional to 403,091 and 879,862 is: 1,920,551.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,091 : 879,862 = 879,862 : x
  2. Step 2: Convert to fraction form
    403,091/879,862 = 879,862/x
  3. Step 3: Cross multiply
    403,091x = 879,862 × 879,862
  4. Step 4: Simplify right side
    403,091x = 774,157,139,044
  5. Step 5: Solve for x
    x = 774,157,139,044/403,091
  6. Step 6: Final answer
    x = 1,920,551.78

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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.