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Finding the Third Proportional to 570,876 and 888,990

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Solution

The third proportional to 570,876 and 888,990 is: 1,384,369.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,876 : 888,990 = 888,990 : x
  2. Step 2: Convert to fraction form
    570,876/888,990 = 888,990/x
  3. Step 3: Cross multiply
    570,876x = 888,990 × 888,990
  4. Step 4: Simplify right side
    570,876x = 790,303,220,100
  5. Step 5: Solve for x
    x = 790,303,220,100/570,876
  6. Step 6: Final answer
    x = 1,384,369.32

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.