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Finding the Third Proportional to 553,717 and 867,485

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Solution

The third proportional to 553,717 and 867,485 is: 1,359,052.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,717 : 867,485 = 867,485 : x
  2. Step 2: Convert to fraction form
    553,717/867,485 = 867,485/x
  3. Step 3: Cross multiply
    553,717x = 867,485 × 867,485
  4. Step 4: Simplify right side
    553,717x = 752,530,225,225
  5. Step 5: Solve for x
    x = 752,530,225,225/553,717
  6. Step 6: Final answer
    x = 1,359,052.05

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.