Home / 726,550.80-1,090,059.78-221,209.65

Finding the Fourth Proportional to 726,550.80, 1,090,059.78 and 221,209.65

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Solution

The fourth proportional to 726,550.80, 1,090,059.78 and 221,209.65 is: 331,885.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,550.80 : 1,090,059.78 = 221,209.65 : x
  2. Step 2: Convert to fraction form
    726,550.80/1,090,059.78 = 221,209.65/x
  3. Step 3: Cross multiply
    726,550.80x = 1,090,059.78 × 221,209.65
  4. Step 4: Simplify right side
    726,550.80x = 241,131,742,412.88
  5. Step 5: Solve for x
    x = 241,131,742,412.88/726,550.80
  6. Step 6: Final answer
    x = 331,885.59

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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.