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Finding the Fourth Proportional to 681,239.52, 940,183.92 and 375,346.89

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Solution

The fourth proportional to 681,239.52, 940,183.92 and 375,346.89 is: 518,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,239.52 : 940,183.92 = 375,346.89 : x
  2. Step 2: Convert to fraction form
    681,239.52/940,183.92 = 375,346.89/x
  3. Step 3: Cross multiply
    681,239.52x = 940,183.92 × 375,346.89
  4. Step 4: Simplify right side
    681,239.52x = 352,895,110,400.01
  5. Step 5: Solve for x
    x = 352,895,110,400.01/681,239.52
  6. Step 6: Final answer
    x = 518,019.14

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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.