Home / 2,672,272.20-4,008,408.30-990,031.80

Finding the Fourth Proportional to 2,672,272.20, 4,008,408.30 and 990,031.80

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Solution

The fourth proportional to 2,672,272.20, 4,008,408.30 and 990,031.80 is: 1,485,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,272.20 : 4,008,408.30 = 990,031.80 : x
  2. Step 2: Convert to fraction form
    2,672,272.20/4,008,408.30 = 990,031.80/x
  3. Step 3: Cross multiply
    2,672,272.20x = 4,008,408.30 × 990,031.80
  4. Step 4: Simplify right side
    2,672,272.20x = 3,968,451,684,383.94
  5. Step 5: Solve for x
    x = 3,968,451,684,383.94/2,672,272.20
  6. Step 6: Final answer
    x = 1,485,047.70

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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.