Home / 419,767.60-629,837.52-220,040.32

Finding the Fourth Proportional to 419,767.60, 629,837.52 and 220,040.32

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Solution

The fourth proportional to 419,767.60, 629,837.52 and 220,040.32 is: 330,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,767.60 : 629,837.52 = 220,040.32 : x
  2. Step 2: Convert to fraction form
    419,767.60/629,837.52 = 220,040.32/x
  3. Step 3: Cross multiply
    419,767.60x = 629,837.52 × 220,040.32
  4. Step 4: Simplify right side
    419,767.60x = 138,589,649,448.81
  5. Step 5: Solve for x
    x = 138,589,649,448.81/419,767.60
  6. Step 6: Final answer
    x = 330,158.04

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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.