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Finding the Third Proportional to 840,685 and 1,338,344

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Solution

The third proportional to 840,685 and 1,338,344 is: 2,130,601.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,685 : 1,338,344 = 1,338,344 : x
  2. Step 2: Convert to fraction form
    840,685/1,338,344 = 1,338,344/x
  3. Step 3: Cross multiply
    840,685x = 1,338,344 × 1,338,344
  4. Step 4: Simplify right side
    840,685x = 1,791,164,662,336
  5. Step 5: Solve for x
    x = 1,791,164,662,336/840,685
  6. Step 6: Final answer
    x = 2,130,601.43

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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.