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Finding the Third Proportional to 873,906 and 1,318,869

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Solution

The third proportional to 873,906 and 1,318,869 is: 1,990,391.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,906 : 1,318,869 = 1,318,869 : x
  2. Step 2: Convert to fraction form
    873,906/1,318,869 = 1,318,869/x
  3. Step 3: Cross multiply
    873,906x = 1,318,869 × 1,318,869
  4. Step 4: Simplify right side
    873,906x = 1,739,415,439,161
  5. Step 5: Solve for x
    x = 1,739,415,439,161/873,906
  6. Step 6: Final answer
    x = 1,990,391.92

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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.