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Finding the Third Proportional to 873,286 and 1,388,655

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Solution

The third proportional to 873,286 and 1,388,655 is: 2,208,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,286 : 1,388,655 = 1,388,655 : x
  2. Step 2: Convert to fraction form
    873,286/1,388,655 = 1,388,655/x
  3. Step 3: Cross multiply
    873,286x = 1,388,655 × 1,388,655
  4. Step 4: Simplify right side
    873,286x = 1,928,362,709,025
  5. Step 5: Solve for x
    x = 1,928,362,709,025/873,286
  6. Step 6: Final answer
    x = 2,208,168.58

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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.