Home / 814,775.72-1,222,022.63-215,745.48

Finding the Fourth Proportional to 814,775.72, 1,222,022.63 and 215,745.48

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Solution

The fourth proportional to 814,775.72, 1,222,022.63 and 215,745.48 is: 323,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,775.72 : 1,222,022.63 = 215,745.48 : x
  2. Step 2: Convert to fraction form
    814,775.72/1,222,022.63 = 215,745.48/x
  3. Step 3: Cross multiply
    814,775.72x = 1,222,022.63 × 215,745.48
  4. Step 4: Simplify right side
    814,775.72x = 263,645,857,801.49
  5. Step 5: Solve for x
    x = 263,645,857,801.49/814,775.72
  6. Step 6: Final answer
    x = 323,580.90

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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.