Home / 2,190,917.22-3,022,947.60-1,272,600.72

Finding the Fourth Proportional to 2,190,917.22, 3,022,947.60 and 1,272,600.72

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Solution

The fourth proportional to 2,190,917.22, 3,022,947.60 and 1,272,600.72 is: 1,755,888.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,917.22 : 3,022,947.60 = 1,272,600.72 : x
  2. Step 2: Convert to fraction form
    2,190,917.22/3,022,947.60 = 1,272,600.72/x
  3. Step 3: Cross multiply
    2,190,917.22x = 3,022,947.60 × 1,272,600.72
  4. Step 4: Simplify right side
    2,190,917.22x = 3,847,005,292,282.27
  5. Step 5: Solve for x
    x = 3,847,005,292,282.27/2,190,917.22
  6. Step 6: Final answer
    x = 1,755,888.02

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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.