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Finding the Third Proportional to 344,190 and 729,408

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Solution

The third proportional to 344,190 and 729,408 is: 1,545,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,190 : 729,408 = 729,408 : x
  2. Step 2: Convert to fraction form
    344,190/729,408 = 729,408/x
  3. Step 3: Cross multiply
    344,190x = 729,408 × 729,408
  4. Step 4: Simplify right side
    344,190x = 532,036,030,464
  5. Step 5: Solve for x
    x = 532,036,030,464/344,190
  6. Step 6: Final answer
    x = 1,545,762.60

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.