Home / 641,305.90-961,827.63-220,614.58

Finding the Fourth Proportional to 641,305.90, 961,827.63 and 220,614.58

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Solution

The fourth proportional to 641,305.90, 961,827.63 and 220,614.58 is: 330,876.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,305.90 : 961,827.63 = 220,614.58 : x
  2. Step 2: Convert to fraction form
    641,305.90/961,827.63 = 220,614.58/x
  3. Step 3: Cross multiply
    641,305.90x = 961,827.63 × 220,614.58
  4. Step 4: Simplify right side
    641,305.90x = 212,193,198,624.85
  5. Step 5: Solve for x
    x = 212,193,198,624.85/641,305.90
  6. Step 6: Final answer
    x = 330,876.73

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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.