Home / 2,145,975.80-3,218,963.70-726,078.20

Finding the Fourth Proportional to 2,145,975.80, 3,218,963.70 and 726,078.20

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Solution

The fourth proportional to 2,145,975.80, 3,218,963.70 and 726,078.20 is: 1,089,117.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,975.80 : 3,218,963.70 = 726,078.20 : x
  2. Step 2: Convert to fraction form
    2,145,975.80/3,218,963.70 = 726,078.20/x
  3. Step 3: Cross multiply
    2,145,975.80x = 3,218,963.70 × 726,078.20
  4. Step 4: Simplify right side
    2,145,975.80x = 2,337,219,369,161.34
  5. Step 5: Solve for x
    x = 2,337,219,369,161.34/2,145,975.80
  6. Step 6: Final answer
    x = 1,089,117.30

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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.