Home / 1,340,168.77-1,849,447.37-728,331.83

Finding the Fourth Proportional to 1,340,168.77, 1,849,447.37 and 728,331.83

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Solution

The fourth proportional to 1,340,168.77, 1,849,447.37 and 728,331.83 is: 1,005,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,168.77 : 1,849,447.37 = 728,331.83 : x
  2. Step 2: Convert to fraction form
    1,340,168.77/1,849,447.37 = 728,331.83/x
  3. Step 3: Cross multiply
    1,340,168.77x = 1,849,447.37 × 728,331.83
  4. Step 4: Simplify right side
    1,340,168.77x = 1,347,011,380,764.06
  5. Step 5: Solve for x
    x = 1,347,011,380,764.06/1,340,168.77
  6. Step 6: Final answer
    x = 1,005,105.78

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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.