Home / 2,800,928.40-4,200,809.40-1,203,543.60

Finding the Fourth Proportional to 2,800,928.40, 4,200,809.40 and 1,203,543.60

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Solution

The fourth proportional to 2,800,928.40, 4,200,809.40 and 1,203,543.60 is: 1,805,064.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,928.40 : 4,200,809.40 = 1,203,543.60 : x
  2. Step 2: Convert to fraction form
    2,800,928.40/4,200,809.40 = 1,203,543.60/x
  3. Step 3: Cross multiply
    2,800,928.40x = 4,200,809.40 × 1,203,543.60
  4. Step 4: Simplify right side
    2,800,928.40x = 5,055,857,268,189.84
  5. Step 5: Solve for x
    x = 5,055,857,268,189.84/2,800,928.40
  6. Step 6: Final answer
    x = 1,805,064.80

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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.