Home / 641,273.76-961,900.92-220,553.28

Finding the Fourth Proportional to 641,273.76, 961,900.92 and 220,553.28

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Solution

The fourth proportional to 641,273.76, 961,900.92 and 220,553.28 is: 330,826.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,273.76 : 961,900.92 = 220,553.28 : x
  2. Step 2: Convert to fraction form
    641,273.76/961,900.92 = 220,553.28/x
  3. Step 3: Cross multiply
    641,273.76x = 961,900.92 × 220,553.28
  4. Step 4: Simplify right side
    641,273.76x = 212,150,402,941.02
  5. Step 5: Solve for x
    x = 212,150,402,941.02/641,273.76
  6. Step 6: Final answer
    x = 330,826.58

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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.