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Finding the Third Proportional to 553,619 and 867,333

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Solution

The third proportional to 553,619 and 867,333 is: 1,358,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,619 : 867,333 = 867,333 : x
  2. Step 2: Convert to fraction form
    553,619/867,333 = 867,333/x
  3. Step 3: Cross multiply
    553,619x = 867,333 × 867,333
  4. Step 4: Simplify right side
    553,619x = 752,266,532,889
  5. Step 5: Solve for x
    x = 752,266,532,889/553,619
  6. Step 6: Final answer
    x = 1,358,816.32

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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.