Home / 1,327,390.80-1,991,863.80-486,027.60

Finding the Fourth Proportional to 1,327,390.80, 1,991,863.80 and 486,027.60

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Solution

The fourth proportional to 1,327,390.80, 1,991,863.80 and 486,027.60 is: 729,326.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,390.80 : 1,991,863.80 = 486,027.60 : x
  2. Step 2: Convert to fraction form
    1,327,390.80/1,991,863.80 = 486,027.60/x
  3. Step 3: Cross multiply
    1,327,390.80x = 1,991,863.80 × 486,027.60
  4. Step 4: Simplify right side
    1,327,390.80x = 968,100,782,240.88
  5. Step 5: Solve for x
    x = 968,100,782,240.88/1,327,390.80
  6. Step 6: Final answer
    x = 729,326.12

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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.