Home / 2,145,982.80-3,218,974.20-726,085.20

Finding the Fourth Proportional to 2,145,982.80, 3,218,974.20 and 726,085.20

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Solution

The fourth proportional to 2,145,982.80, 3,218,974.20 and 726,085.20 is: 1,089,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,982.80 : 3,218,974.20 = 726,085.20 : x
  2. Step 2: Convert to fraction form
    2,145,982.80/3,218,974.20 = 726,085.20/x
  3. Step 3: Cross multiply
    2,145,982.80x = 3,218,974.20 × 726,085.20
  4. Step 4: Simplify right side
    2,145,982.80x = 2,337,249,525,801.84
  5. Step 5: Solve for x
    x = 2,337,249,525,801.84/2,145,982.80
  6. Step 6: Final answer
    x = 1,089,127.80

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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.