Home / 726,504.09-1,089,797.13-221,081.55

Finding the Fourth Proportional to 726,504.09, 1,089,797.13 and 221,081.55

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Solution

The fourth proportional to 726,504.09, 1,089,797.13 and 221,081.55 is: 331,634.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,504.09 : 1,089,797.13 = 221,081.55 : x
  2. Step 2: Convert to fraction form
    726,504.09/1,089,797.13 = 221,081.55/x
  3. Step 3: Cross multiply
    726,504.09x = 1,089,797.13 × 221,081.55
  4. Step 4: Simplify right side
    726,504.09x = 240,934,038,685.95
  5. Step 5: Solve for x
    x = 240,934,038,685.95/726,504.09
  6. Step 6: Final answer
    x = 331,634.80

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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.