Home / 1,268,055-1,902,193.17-321,425.64

Finding the Fourth Proportional to 1,268,055, 1,902,193.17 and 321,425.64

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Solution

The fourth proportional to 1,268,055, 1,902,193.17 and 321,425.64 is: 482,166.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,055 : 1,902,193.17 = 321,425.64 : x
  2. Step 2: Convert to fraction form
    1,268,055/1,902,193.17 = 321,425.64/x
  3. Step 3: Cross multiply
    1,268,055x = 1,902,193.17 × 321,425.64
  4. Step 4: Simplify right side
    1,268,055x = 611,413,657,070.88
  5. Step 5: Solve for x
    x = 611,413,657,070.88/1,268,055
  6. Step 6: Final answer
    x = 482,166.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.