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Finding the Third Proportional to 438,525 and 656,023.50

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Solution

The third proportional to 438,525 and 656,023.50 is: 981,396.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,525 : 656,023.50 = 656,023.50 : x
  2. Step 2: Convert to fraction form
    438,525/656,023.50 = 656,023.50/x
  3. Step 3: Cross multiply
    438,525x = 656,023.50 × 656,023.50
  4. Step 4: Simplify right side
    438,525x = 430,366,832,552.25
  5. Step 5: Solve for x
    x = 430,366,832,552.25/438,525
  6. Step 6: Final answer
    x = 981,396.35

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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.