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Finding the Fourth Proportional to 681,804.30, 940,896.02 and 375,891.52

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Solution

The fourth proportional to 681,804.30, 940,896.02 and 375,891.52 is: 518,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,804.30 : 940,896.02 = 375,891.52 : x
  2. Step 2: Convert to fraction form
    681,804.30/940,896.02 = 375,891.52/x
  3. Step 3: Cross multiply
    681,804.30x = 940,896.02 × 375,891.52
  4. Step 4: Simplify right side
    681,804.30x = 353,674,833,357.03
  5. Step 5: Solve for x
    x = 353,674,833,357.03/681,804.30
  6. Step 6: Final answer
    x = 518,733.65

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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.