Home / 726,510.62-1,089,806.87-221,088.04

Finding the Fourth Proportional to 726,510.62, 1,089,806.87 and 221,088.04

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Solution

The fourth proportional to 726,510.62, 1,089,806.87 and 221,088.04 is: 331,644.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,510.62 : 1,089,806.87 = 221,088.04 : x
  2. Step 2: Convert to fraction form
    726,510.62/1,089,806.87 = 221,088.04/x
  3. Step 3: Cross multiply
    726,510.62x = 1,089,806.87 × 221,088.04
  4. Step 4: Simplify right side
    726,510.62x = 240,943,262,695.04
  5. Step 5: Solve for x
    x = 240,943,262,695.04/726,510.62
  6. Step 6: Final answer
    x = 331,644.51

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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.