Home / 2,626,191.20-3,939,286.80-1,680,629.60

Finding the Fourth Proportional to 2,626,191.20, 3,939,286.80 and 1,680,629.60

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Solution

The fourth proportional to 2,626,191.20, 3,939,286.80 and 1,680,629.60 is: 2,520,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,626,191.20 : 3,939,286.80 = 1,680,629.60 : x
  2. Step 2: Convert to fraction form
    2,626,191.20/3,939,286.80 = 1,680,629.60/x
  3. Step 3: Cross multiply
    2,626,191.20x = 3,939,286.80 × 1,680,629.60
  4. Step 4: Simplify right side
    2,626,191.20x = 6,620,481,998,969.28
  5. Step 5: Solve for x
    x = 6,620,481,998,969.28/2,626,191.20
  6. Step 6: Final answer
    x = 2,520,944.40

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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.