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Finding the Third Proportional to 280,512 and 608,580

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Solution

The third proportional to 280,512 and 608,580 is: 1,320,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,512 : 608,580 = 608,580 : x
  2. Step 2: Convert to fraction form
    280,512/608,580 = 608,580/x
  3. Step 3: Cross multiply
    280,512x = 608,580 × 608,580
  4. Step 4: Simplify right side
    280,512x = 370,369,616,400
  5. Step 5: Solve for x
    x = 370,369,616,400/280,512
  6. Step 6: Final answer
    x = 1,320,334.30

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.