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Finding the Fourth Proportional to 681,157.50, 940,026.51 and 379,351.50

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Solution

The fourth proportional to 681,157.50, 940,026.51 and 379,351.50 is: 523,521.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,157.50 : 940,026.51 = 379,351.50 : x
  2. Step 2: Convert to fraction form
    681,157.50/940,026.51 = 379,351.50/x
  3. Step 3: Cross multiply
    681,157.50x = 940,026.51 × 379,351.50
  4. Step 4: Simplify right side
    681,157.50x = 356,600,466,608.27
  5. Step 5: Solve for x
    x = 356,600,466,608.27/681,157.50
  6. Step 6: Final answer
    x = 523,521.31

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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.