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Finding the Fourth Proportional to 681,662.98, 940,701.48 and 375,751.16

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Solution

The fourth proportional to 681,662.98, 940,701.48 and 375,751.16 is: 518,540.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,662.98 : 940,701.48 = 375,751.16 : x
  2. Step 2: Convert to fraction form
    681,662.98/940,701.48 = 375,751.16/x
  3. Step 3: Cross multiply
    681,662.98x = 940,701.48 × 375,751.16
  4. Step 4: Simplify right side
    681,662.98x = 353,469,672,323.72
  5. Step 5: Solve for x
    x = 353,469,672,323.72/681,662.98
  6. Step 6: Final answer
    x = 518,540.22

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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.