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Finding the Third Proportional to 553,722 and 867,486

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Solution

The third proportional to 553,722 and 867,486 is: 1,359,042.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,722 : 867,486 = 867,486 : x
  2. Step 2: Convert to fraction form
    553,722/867,486 = 867,486/x
  3. Step 3: Cross multiply
    553,722x = 867,486 × 867,486
  4. Step 4: Simplify right side
    553,722x = 752,531,960,196
  5. Step 5: Solve for x
    x = 752,531,960,196/553,722
  6. Step 6: Final answer
    x = 1,359,042.91

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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.