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Finding the Third Proportional to 347,928 and 741,420

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Solution

The third proportional to 347,928 and 741,420 is: 1,579,934.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,928 : 741,420 = 741,420 : x
  2. Step 2: Convert to fraction form
    347,928/741,420 = 741,420/x
  3. Step 3: Cross multiply
    347,928x = 741,420 × 741,420
  4. Step 4: Simplify right side
    347,928x = 549,703,616,400
  5. Step 5: Solve for x
    x = 549,703,616,400/347,928
  6. Step 6: Final answer
    x = 1,579,934.98

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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.