Home / 407,942.33-612,024.21-123,621.39

Finding the Fourth Proportional to 407,942.33, 612,024.21 and 123,621.39

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Solution

The fourth proportional to 407,942.33, 612,024.21 and 123,621.39 is: 185,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,942.33 : 612,024.21 = 123,621.39 : x
  2. Step 2: Convert to fraction form
    407,942.33/612,024.21 = 123,621.39/x
  3. Step 3: Cross multiply
    407,942.33x = 612,024.21 × 123,621.39
  4. Step 4: Simplify right side
    407,942.33x = 75,659,283,553.85
  5. Step 5: Solve for x
    x = 75,659,283,553.85/407,942.33
  6. Step 6: Final answer
    x = 185,465.64

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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.