Home / 669,410.88-1,004,148.60-220,121.80

Finding the Fourth Proportional to 669,410.88, 1,004,148.60 and 220,121.80

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Solution

The fourth proportional to 669,410.88, 1,004,148.60 and 220,121.80 is: 330,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,410.88 : 1,004,148.60 = 220,121.80 : x
  2. Step 2: Convert to fraction form
    669,410.88/1,004,148.60 = 220,121.80/x
  3. Step 3: Cross multiply
    669,410.88x = 1,004,148.60 × 220,121.80
  4. Step 4: Simplify right side
    669,410.88x = 221,034,993,963.65
  5. Step 5: Solve for x
    x = 221,034,993,963.65/669,410.88
  6. Step 6: Final answer
    x = 330,193.31

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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.