Home / 725,077.83-1,087,856.63-388,043.36

Finding the Fourth Proportional to 725,077.83, 1,087,856.63 and 388,043.36

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Solution

The fourth proportional to 725,077.83, 1,087,856.63 and 388,043.36 is: 582,193.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,077.83 : 1,087,856.63 = 388,043.36 : x
  2. Step 2: Convert to fraction form
    725,077.83/1,087,856.63 = 388,043.36/x
  3. Step 3: Cross multiply
    725,077.83x = 1,087,856.63 × 388,043.36
  4. Step 4: Simplify right side
    725,077.83x = 422,135,540,058.60
  5. Step 5: Solve for x
    x = 422,135,540,058.60/725,077.83
  6. Step 6: Final answer
    x = 582,193.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.