Home / 2,638,933.20-3,958,399.80-1,379,221.20

Finding the Fourth Proportional to 2,638,933.20, 3,958,399.80 and 1,379,221.20

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Solution

The fourth proportional to 2,638,933.20, 3,958,399.80 and 1,379,221.20 is: 2,068,831.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,933.20 : 3,958,399.80 = 1,379,221.20 : x
  2. Step 2: Convert to fraction form
    2,638,933.20/3,958,399.80 = 1,379,221.20/x
  3. Step 3: Cross multiply
    2,638,933.20x = 3,958,399.80 × 1,379,221.20
  4. Step 4: Simplify right side
    2,638,933.20x = 5,459,508,922,235.76
  5. Step 5: Solve for x
    x = 5,459,508,922,235.76/2,638,933.20
  6. Step 6: Final answer
    x = 2,068,831.80

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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.