Home / 1,327,322.40-1,990,983.60-380,788.80

Finding the Fourth Proportional to 1,327,322.40, 1,990,983.60 and 380,788.80

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Solution

The fourth proportional to 1,327,322.40, 1,990,983.60 and 380,788.80 is: 571,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,322.40 : 1,990,983.60 = 380,788.80 : x
  2. Step 2: Convert to fraction form
    1,327,322.40/1,990,983.60 = 380,788.80/x
  3. Step 3: Cross multiply
    1,327,322.40x = 1,990,983.60 × 380,788.80
  4. Step 4: Simplify right side
    1,327,322.40x = 758,144,255,863.68
  5. Step 5: Solve for x
    x = 758,144,255,863.68/1,327,322.40
  6. Step 6: Final answer
    x = 571,183.20

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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.