Home / 726,515.38-1,089,814.01-221,092.80

Finding the Fourth Proportional to 726,515.38, 1,089,814.01 and 221,092.80

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Solution

The fourth proportional to 726,515.38, 1,089,814.01 and 221,092.80 is: 331,651.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,515.38 : 1,089,814.01 = 221,092.80 : x
  2. Step 2: Convert to fraction form
    726,515.38/1,089,814.01 = 221,092.80/x
  3. Step 3: Cross multiply
    726,515.38x = 1,089,814.01 × 221,092.80
  4. Step 4: Simplify right side
    726,515.38x = 240,950,030,950.13
  5. Step 5: Solve for x
    x = 240,950,030,950.13/726,515.38
  6. Step 6: Final answer
    x = 331,651.66

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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.