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Finding the Third Proportional to 553,628 and 867,350

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Solution

The third proportional to 553,628 and 867,350 is: 1,358,847.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,628 : 867,350 = 867,350 : x
  2. Step 2: Convert to fraction form
    553,628/867,350 = 867,350/x
  3. Step 3: Cross multiply
    553,628x = 867,350 × 867,350
  4. Step 4: Simplify right side
    553,628x = 752,296,022,500
  5. Step 5: Solve for x
    x = 752,296,022,500/553,628
  6. Step 6: Final answer
    x = 1,358,847.50

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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.