Home / 419,845.95-629,612.19-135,465.08

Finding the Fourth Proportional to 419,845.95, 629,612.19 and 135,465.08

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Solution

The fourth proportional to 419,845.95, 629,612.19 and 135,465.08 is: 203,147.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,845.95 : 629,612.19 = 135,465.08 : x
  2. Step 2: Convert to fraction form
    419,845.95/629,612.19 = 135,465.08/x
  3. Step 3: Cross multiply
    419,845.95x = 629,612.19 × 135,465.08
  4. Step 4: Simplify right side
    419,845.95x = 85,290,465,687.33
  5. Step 5: Solve for x
    x = 85,290,465,687.33/419,845.95
  6. Step 6: Final answer
    x = 203,147.05

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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.