Home / 2,141,275.20-3,211,912.80-878,452.80

Finding the Fourth Proportional to 2,141,275.20, 3,211,912.80 and 878,452.80

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Solution

The fourth proportional to 2,141,275.20, 3,211,912.80 and 878,452.80 is: 1,317,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141,275.20 : 3,211,912.80 = 878,452.80 : x
  2. Step 2: Convert to fraction form
    2,141,275.20/3,211,912.80 = 878,452.80/x
  3. Step 3: Cross multiply
    2,141,275.20x = 3,211,912.80 × 878,452.80
  4. Step 4: Simplify right side
    2,141,275.20x = 2,821,513,792,515.84
  5. Step 5: Solve for x
    x = 2,821,513,792,515.84/2,141,275.20
  6. Step 6: Final answer
    x = 1,317,679.20

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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.