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Finding the Third Proportional to 873,668 and 1,389,190

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Solution

The third proportional to 873,668 and 1,389,190 is: 2,208,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,668 : 1,389,190 = 1,389,190 : x
  2. Step 2: Convert to fraction form
    873,668/1,389,190 = 1,389,190/x
  3. Step 3: Cross multiply
    873,668x = 1,389,190 × 1,389,190
  4. Step 4: Simplify right side
    873,668x = 1,929,848,856,100
  5. Step 5: Solve for x
    x = 1,929,848,856,100/873,668
  6. Step 6: Final answer
    x = 2,208,904.13

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.