Home / 3,419,408.32-5,129,111.43-1,288,994.21

Finding the Fourth Proportional to 3,419,408.32, 5,129,111.43 and 1,288,994.21

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Solution

The fourth proportional to 3,419,408.32, 5,129,111.43 and 1,288,994.21 is: 1,933,490.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419,408.32 : 5,129,111.43 = 1,288,994.21 : x
  2. Step 2: Convert to fraction form
    3,419,408.32/5,129,111.43 = 1,288,994.21/x
  3. Step 3: Cross multiply
    3,419,408.32x = 5,129,111.43 × 1,288,994.21
  4. Step 4: Simplify right side
    3,419,408.32x = 6,611,394,929,303.43
  5. Step 5: Solve for x
    x = 6,611,394,929,303.43/3,419,408.32
  6. Step 6: Final answer
    x = 1,933,490.92

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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.