Home / 1,362,198.94-1,879,762.80-781,392.76

Finding the Fourth Proportional to 1,362,198.94, 1,879,762.80 and 781,392.76

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Solution

The fourth proportional to 1,362,198.94, 1,879,762.80 and 781,392.76 is: 1,078,280.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,198.94 : 1,879,762.80 = 781,392.76 : x
  2. Step 2: Convert to fraction form
    1,362,198.94/1,879,762.80 = 781,392.76/x
  3. Step 3: Cross multiply
    1,362,198.94x = 1,879,762.80 × 781,392.76
  4. Step 4: Simplify right side
    1,362,198.94x = 1,468,833,042,437.33
  5. Step 5: Solve for x
    x = 1,468,833,042,437.33/1,362,198.94
  6. Step 6: Final answer
    x = 1,078,280.86

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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.