Home / 726,500.46-1,089,791.69-221,077.91

Finding the Fourth Proportional to 726,500.46, 1,089,791.69 and 221,077.91

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Solution

The fourth proportional to 726,500.46, 1,089,791.69 and 221,077.91 is: 331,629.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,500.46 : 1,089,791.69 = 221,077.91 : x
  2. Step 2: Convert to fraction form
    726,500.46/1,089,791.69 = 221,077.91/x
  3. Step 3: Cross multiply
    726,500.46x = 1,089,791.69 × 221,077.91
  4. Step 4: Simplify right side
    726,500.46x = 240,928,870,779.66
  5. Step 5: Solve for x
    x = 240,928,870,779.66/726,500.46
  6. Step 6: Final answer
    x = 331,629.34

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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.