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Finding the Third Proportional to 320,300 and 741,408

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Solution

The third proportional to 320,300 and 741,408 is: 1,716,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,300 : 741,408 = 741,408 : x
  2. Step 2: Convert to fraction form
    320,300/741,408 = 741,408/x
  3. Step 3: Cross multiply
    320,300x = 741,408 × 741,408
  4. Step 4: Simplify right side
    320,300x = 549,685,822,464
  5. Step 5: Solve for x
    x = 549,685,822,464/320,300
  6. Step 6: Final answer
    x = 1,716,159.30

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.