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Finding the Third Proportional to 324,440 and 433,987

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Solution

The third proportional to 324,440 and 433,987 is: 580,522.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,440 : 433,987 = 433,987 : x
  2. Step 2: Convert to fraction form
    324,440/433,987 = 433,987/x
  3. Step 3: Cross multiply
    324,440x = 433,987 × 433,987
  4. Step 4: Simplify right side
    324,440x = 188,344,716,169
  5. Step 5: Solve for x
    x = 188,344,716,169/324,440
  6. Step 6: Final answer
    x = 580,522.49

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.