Home / 726,531.24-1,089,962.64-221,163.78

Finding the Fourth Proportional to 726,531.24, 1,089,962.64 and 221,163.78

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Solution

The fourth proportional to 726,531.24, 1,089,962.64 and 221,163.78 is: 331,796.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,531.24 : 1,089,962.64 = 221,163.78 : x
  2. Step 2: Convert to fraction form
    726,531.24/1,089,962.64 = 221,163.78/x
  3. Step 3: Cross multiply
    726,531.24x = 1,089,962.64 × 221,163.78
  4. Step 4: Simplify right side
    726,531.24x = 241,060,257,521.18
  5. Step 5: Solve for x
    x = 241,060,257,521.18/726,531.24
  6. Step 6: Final answer
    x = 331,796.14

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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.