Home / 2,668,121.60-4,004,806.80-1,321,804.40

Finding the Fourth Proportional to 2,668,121.60, 4,004,806.80 and 1,321,804.40

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Solution

The fourth proportional to 2,668,121.60, 4,004,806.80 and 1,321,804.40 is: 1,984,006.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668,121.60 : 4,004,806.80 = 1,321,804.40 : x
  2. Step 2: Convert to fraction form
    2,668,121.60/4,004,806.80 = 1,321,804.40/x
  3. Step 3: Cross multiply
    2,668,121.60x = 4,004,806.80 × 1,321,804.40
  4. Step 4: Simplify right side
    2,668,121.60x = 5,293,571,249,389.92
  5. Step 5: Solve for x
    x = 5,293,571,249,389.92/2,668,121.60
  6. Step 6: Final answer
    x = 1,984,006.74

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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.