Home / 378,576.45-567,741.76-125,789.05

Finding the Fourth Proportional to 378,576.45, 567,741.76 and 125,789.05

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Solution

The fourth proportional to 378,576.45, 567,741.76 and 125,789.05 is: 188,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,576.45 : 567,741.76 = 125,789.05 : x
  2. Step 2: Convert to fraction form
    378,576.45/567,741.76 = 125,789.05/x
  3. Step 3: Cross multiply
    378,576.45x = 567,741.76 × 125,789.05
  4. Step 4: Simplify right side
    378,576.45x = 71,415,697,030.93
  5. Step 5: Solve for x
    x = 71,415,697,030.93/378,576.45
  6. Step 6: Final answer
    x = 188,642.74

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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.