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Finding the Third Proportional to 637,821.50 and 919,005.50

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Solution

The third proportional to 637,821.50 and 919,005.50 is: 1,324,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,821.50 : 919,005.50 = 919,005.50 : x
  2. Step 2: Convert to fraction form
    637,821.50/919,005.50 = 919,005.50/x
  3. Step 3: Cross multiply
    637,821.50x = 919,005.50 × 919,005.50
  4. Step 4: Simplify right side
    637,821.50x = 844,571,109,030.25
  5. Step 5: Solve for x
    x = 844,571,109,030.25/637,821.50
  6. Step 6: Final answer
    x = 1,324,149.64

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.