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Finding the Third Proportional to 355,608 and 770,240

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Solution

The third proportional to 355,608 and 770,240 is: 1,668,324.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,608 : 770,240 = 770,240 : x
  2. Step 2: Convert to fraction form
    355,608/770,240 = 770,240/x
  3. Step 3: Cross multiply
    355,608x = 770,240 × 770,240
  4. Step 4: Simplify right side
    355,608x = 593,269,657,600
  5. Step 5: Solve for x
    x = 593,269,657,600/355,608
  6. Step 6: Final answer
    x = 1,668,324.83

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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.