Home / 1,362,206.82-1,879,855.01-781,455.30

Finding the Fourth Proportional to 1,362,206.82, 1,879,855.01 and 781,455.30

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Solution

The fourth proportional to 1,362,206.82, 1,879,855.01 and 781,455.30 is: 1,078,413.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,206.82 : 1,879,855.01 = 781,455.30 : x
  2. Step 2: Convert to fraction form
    1,362,206.82/1,879,855.01 = 781,455.30/x
  3. Step 3: Cross multiply
    1,362,206.82x = 1,879,855.01 × 781,455.30
  4. Step 4: Simplify right side
    1,362,206.82x = 1,469,022,660,796.05
  5. Step 5: Solve for x
    x = 1,469,022,660,796.05/1,362,206.82
  6. Step 6: Final answer
    x = 1,078,413.82

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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.