Home / 2,751,401.20-4,127,101.80-858,139.60

Finding the Fourth Proportional to 2,751,401.20, 4,127,101.80 and 858,139.60

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Solution

The fourth proportional to 2,751,401.20, 4,127,101.80 and 858,139.60 is: 1,287,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,751,401.20 : 4,127,101.80 = 858,139.60 : x
  2. Step 2: Convert to fraction form
    2,751,401.20/4,127,101.80 = 858,139.60/x
  3. Step 3: Cross multiply
    2,751,401.20x = 4,127,101.80 × 858,139.60
  4. Step 4: Simplify right side
    2,751,401.20x = 3,541,629,487,811.28
  5. Step 5: Solve for x
    x = 3,541,629,487,811.28/2,751,401.20
  6. Step 6: Final answer
    x = 1,287,209.40

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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.