Home / 2,539,540.80-3,809,311.20-1,978,994.88

Finding the Fourth Proportional to 2,539,540.80, 3,809,311.20 and 1,978,994.88

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Solution

The fourth proportional to 2,539,540.80, 3,809,311.20 and 1,978,994.88 is: 2,968,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539,540.80 : 3,809,311.20 = 1,978,994.88 : x
  2. Step 2: Convert to fraction form
    2,539,540.80/3,809,311.20 = 1,978,994.88/x
  3. Step 3: Cross multiply
    2,539,540.80x = 3,809,311.20 × 1,978,994.88
  4. Step 4: Simplify right side
    2,539,540.80x = 7,538,607,361,126.66
  5. Step 5: Solve for x
    x = 7,538,607,361,126.66/2,539,540.80
  6. Step 6: Final answer
    x = 2,968,492.32

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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.