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Finding the Fourth Proportional to 681,175.50, 940,051.62 and 379,369.50

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Solution

The fourth proportional to 681,175.50, 940,051.62 and 379,369.50 is: 523,546.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,175.50 : 940,051.62 = 379,369.50 : x
  2. Step 2: Convert to fraction form
    681,175.50/940,051.62 = 379,369.50/x
  3. Step 3: Cross multiply
    681,175.50x = 940,051.62 × 379,369.50
  4. Step 4: Simplify right side
    681,175.50x = 356,626,913,053.59
  5. Step 5: Solve for x
    x = 356,626,913,053.59/681,175.50
  6. Step 6: Final answer
    x = 523,546.30

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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.