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Finding the Third Proportional to 433,028 and 636,420

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Solution

The third proportional to 433,028 and 636,420 is: 935,344.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,028 : 636,420 = 636,420 : x
  2. Step 2: Convert to fraction form
    433,028/636,420 = 636,420/x
  3. Step 3: Cross multiply
    433,028x = 636,420 × 636,420
  4. Step 4: Simplify right side
    433,028x = 405,030,416,400
  5. Step 5: Solve for x
    x = 405,030,416,400/433,028
  6. Step 6: Final answer
    x = 935,344.63

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.