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Finding the Fourth Proportional to 681,801.66, 940,892.22 and 375,888.60

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Solution

The fourth proportional to 681,801.66, 940,892.22 and 375,888.60 is: 518,729.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,801.66 : 940,892.22 = 375,888.60 : x
  2. Step 2: Convert to fraction form
    681,801.66/940,892.22 = 375,888.60/x
  3. Step 3: Cross multiply
    681,801.66x = 940,892.22 × 375,888.60
  4. Step 4: Simplify right side
    681,801.66x = 353,670,659,326.69
  5. Step 5: Solve for x
    x = 353,670,659,326.69/681,801.66
  6. Step 6: Final answer
    x = 518,729.54

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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.