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Finding the Third Proportional to 522,456 and 781,659

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Solution

The third proportional to 522,456 and 781,659 is: 1,169,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,456 : 781,659 = 781,659 : x
  2. Step 2: Convert to fraction form
    522,456/781,659 = 781,659/x
  3. Step 3: Cross multiply
    522,456x = 781,659 × 781,659
  4. Step 4: Simplify right side
    522,456x = 610,990,792,281
  5. Step 5: Solve for x
    x = 610,990,792,281/522,456
  6. Step 6: Final answer
    x = 1,169,458.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.