Home / 641,498.76-962,238.06-220,778.28

Finding the Fourth Proportional to 641,498.76, 962,238.06 and 220,778.28

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Solution

The fourth proportional to 641,498.76, 962,238.06 and 220,778.28 is: 331,163.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,498.76 : 962,238.06 = 220,778.28 : x
  2. Step 2: Convert to fraction form
    641,498.76/962,238.06 = 220,778.28/x
  3. Step 3: Cross multiply
    641,498.76x = 962,238.06 × 220,778.28
  4. Step 4: Simplify right side
    641,498.76x = 212,441,263,837.34
  5. Step 5: Solve for x
    x = 212,441,263,837.34/641,498.76
  6. Step 6: Final answer
    x = 331,163.95

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1.5x scale

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.