Home / 378,577.05-567,742.72-125,789.66

Finding the Fourth Proportional to 378,577.05, 567,742.72 and 125,789.66

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Solution

The fourth proportional to 378,577.05, 567,742.72 and 125,789.66 is: 188,643.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,577.05 : 567,742.72 = 125,789.66 : x
  2. Step 2: Convert to fraction form
    378,577.05/567,742.72 = 125,789.66/x
  3. Step 3: Cross multiply
    378,577.05x = 567,742.72 × 125,789.66
  4. Step 4: Simplify right side
    378,577.05x = 71,416,165,122.36
  5. Step 5: Solve for x
    x = 71,416,165,122.36/378,577.05
  6. Step 6: Final answer
    x = 188,643.67

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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.