Home / 1,213,163.20-1,818,578.40-943,141.60

Finding the Fourth Proportional to 1,213,163.20, 1,818,578.40 and 943,141.60

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Solution

The fourth proportional to 1,213,163.20, 1,818,578.40 and 943,141.60 is: 1,413,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,163.20 : 1,818,578.40 = 943,141.60 : x
  2. Step 2: Convert to fraction form
    1,213,163.20/1,818,578.40 = 943,141.60/x
  3. Step 3: Cross multiply
    1,213,163.20x = 1,818,578.40 × 943,141.60
  4. Step 4: Simplify right side
    1,213,163.20x = 1,715,176,941,901.44
  5. Step 5: Solve for x
    x = 1,715,176,941,901.44/1,213,163.20
  6. Step 6: Final answer
    x = 1,413,805.61

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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.