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Finding the Third Proportional to 338,588 and 722,176

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Solution

The third proportional to 338,588 and 722,176 is: 1,540,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,588 : 722,176 = 722,176 : x
  2. Step 2: Convert to fraction form
    338,588/722,176 = 722,176/x
  3. Step 3: Cross multiply
    338,588x = 722,176 × 722,176
  4. Step 4: Simplify right side
    338,588x = 521,538,174,976
  5. Step 5: Solve for x
    x = 521,538,174,976/338,588
  6. Step 6: Final answer
    x = 1,540,332.72

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.