Home / 639,134.28-882,023.77-352,672.82

Finding the Fourth Proportional to 639,134.28, 882,023.77 and 352,672.82

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Solution

The fourth proportional to 639,134.28, 882,023.77 and 352,672.82 is: 486,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,134.28 : 882,023.77 = 352,672.82 : x
  2. Step 2: Convert to fraction form
    639,134.28/882,023.77 = 352,672.82/x
  3. Step 3: Cross multiply
    639,134.28x = 882,023.77 × 352,672.82
  4. Step 4: Simplify right side
    639,134.28x = 311,065,810,272.93
  5. Step 5: Solve for x
    x = 311,065,810,272.93/639,134.28
  6. Step 6: Final answer
    x = 486,698.68

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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.