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Finding the Fourth Proportional to 681,594.60, 940,604.42 and 395,284.52

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Solution

The fourth proportional to 681,594.60, 940,604.42 and 395,284.52 is: 545,494.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,594.60 : 940,604.42 = 395,284.52 : x
  2. Step 2: Convert to fraction form
    681,594.60/940,604.42 = 395,284.52/x
  3. Step 3: Cross multiply
    681,594.60x = 940,604.42 × 395,284.52
  4. Step 4: Simplify right side
    681,594.60x = 371,806,366,669.58
  5. Step 5: Solve for x
    x = 371,806,366,669.58/681,594.60
  6. Step 6: Final answer
    x = 545,494.88

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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.