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Finding the Third Proportional to 685,260 and 1,472,580

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Solution

The third proportional to 685,260 and 1,472,580 is: 3,164,480.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,260 : 1,472,580 = 1,472,580 : x
  2. Step 2: Convert to fraction form
    685,260/1,472,580 = 1,472,580/x
  3. Step 3: Cross multiply
    685,260x = 1,472,580 × 1,472,580
  4. Step 4: Simplify right side
    685,260x = 2,168,491,856,400
  5. Step 5: Solve for x
    x = 2,168,491,856,400/685,260
  6. Step 6: Final answer
    x = 3,164,480.43

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.