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Finding the Third Proportional to 423,520.50 and 636,222.75

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Solution

The third proportional to 423,520.50 and 636,222.75 is: 955,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,520.50 : 636,222.75 = 636,222.75 : x
  2. Step 2: Convert to fraction form
    423,520.50/636,222.75 = 636,222.75/x
  3. Step 3: Cross multiply
    423,520.50x = 636,222.75 × 636,222.75
  4. Step 4: Simplify right side
    423,520.50x = 404,779,387,617.56
  5. Step 5: Solve for x
    x = 404,779,387,617.56/423,520.50
  6. Step 6: Final answer
    x = 955,749.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.