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Finding the Fourth Proportional to 681,649.44, 940,682.82 and 375,737.82

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Solution

The fourth proportional to 681,649.44, 940,682.82 and 375,737.82 is: 518,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,649.44 : 940,682.82 = 375,737.82 : x
  2. Step 2: Convert to fraction form
    681,649.44/940,682.82 = 375,737.82/x
  3. Step 3: Cross multiply
    681,649.44x = 940,682.82 × 375,737.82
  4. Step 4: Simplify right side
    681,649.44x = 353,450,112,098.25
  5. Step 5: Solve for x
    x = 353,450,112,098.25/681,649.44
  6. Step 6: Final answer
    x = 518,521.83

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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.