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Finding the Third Proportional to 867,899 and 1,300,989

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Solution

The third proportional to 867,899 and 1,300,989 is: 1,950,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,899 : 1,300,989 = 1,300,989 : x
  2. Step 2: Convert to fraction form
    867,899/1,300,989 = 1,300,989/x
  3. Step 3: Cross multiply
    867,899x = 1,300,989 × 1,300,989
  4. Step 4: Simplify right side
    867,899x = 1,692,572,378,121
  5. Step 5: Solve for x
    x = 1,692,572,378,121/867,899
  6. Step 6: Final answer
    x = 1,950,195.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.