Home / 491,042.45-677,632.05-276,182.52

Finding the Fourth Proportional to 491,042.45, 677,632.05 and 276,182.52

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Solution

The fourth proportional to 491,042.45, 677,632.05 and 276,182.52 is: 381,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,042.45 : 677,632.05 = 276,182.52 : x
  2. Step 2: Convert to fraction form
    491,042.45/677,632.05 = 276,182.52/x
  3. Step 3: Cross multiply
    491,042.45x = 677,632.05 × 276,182.52
  4. Step 4: Simplify right side
    491,042.45x = 187,150,127,201.77
  5. Step 5: Solve for x
    x = 187,150,127,201.77/491,042.45
  6. Step 6: Final answer
    x = 381,128.21

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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.