Home / 681,043.37-939,846.17-375,120.86

Finding the Fourth Proportional to 681,043.37, 939,846.17 and 375,120.86

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Solution

The fourth proportional to 681,043.37, 939,846.17 and 375,120.86 is: 517,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,043.37 : 939,846.17 = 375,120.86 : x
  2. Step 2: Convert to fraction form
    681,043.37/939,846.17 = 375,120.86/x
  3. Step 3: Cross multiply
    681,043.37x = 939,846.17 × 375,120.86
  4. Step 4: Simplify right side
    681,043.37x = 352,555,899,796.68
  5. Step 5: Solve for x
    x = 352,555,899,796.68/681,043.37
  6. Step 6: Final answer
    x = 517,670.27

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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.