Home / 2,686,540.80-4,027,478.40-1,620,451.20

Finding the Fourth Proportional to 2,686,540.80, 4,027,478.40 and 1,620,451.20

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Solution

The fourth proportional to 2,686,540.80, 4,027,478.40 and 1,620,451.20 is: 2,429,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,540.80 : 4,027,478.40 = 1,620,451.20 : x
  2. Step 2: Convert to fraction form
    2,686,540.80/4,027,478.40 = 1,620,451.20/x
  3. Step 3: Cross multiply
    2,686,540.80x = 4,027,478.40 × 1,620,451.20
  4. Step 4: Simplify right side
    2,686,540.80x = 6,526,332,206,254.08
  5. Step 5: Solve for x
    x = 6,526,332,206,254.08/2,686,540.80
  6. Step 6: Final answer
    x = 2,429,269.72

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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.