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Finding the Third Proportional to 687,021.75 and 949,334.25

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Solution

The third proportional to 687,021.75 and 949,334.25 is: 1,311,800.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,021.75 : 949,334.25 = 949,334.25 : x
  2. Step 2: Convert to fraction form
    687,021.75/949,334.25 = 949,334.25/x
  3. Step 3: Cross multiply
    687,021.75x = 949,334.25 × 949,334.25
  4. Step 4: Simplify right side
    687,021.75x = 901,235,518,223.06
  5. Step 5: Solve for x
    x = 901,235,518,223.06/687,021.75
  6. Step 6: Final answer
    x = 1,311,800.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.