Home / 1,890,399.12-2,608,906.08-1,074,858.72

Finding the Fourth Proportional to 1,890,399.12, 2,608,906.08 and 1,074,858.72

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Solution

The fourth proportional to 1,890,399.12, 2,608,906.08 and 1,074,858.72 is: 1,483,393.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890,399.12 : 2,608,906.08 = 1,074,858.72 : x
  2. Step 2: Convert to fraction form
    1,890,399.12/2,608,906.08 = 1,074,858.72/x
  3. Step 3: Cross multiply
    1,890,399.12x = 2,608,906.08 × 1,074,858.72
  4. Step 4: Simplify right side
    1,890,399.12x = 2,804,205,449,749.02
  5. Step 5: Solve for x
    x = 2,804,205,449,749.02/1,890,399.12
  6. Step 6: Final answer
    x = 1,483,393.33

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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.