Home / 419,734.24-629,511.56-120,134.36

Finding the Fourth Proportional to 419,734.24, 629,511.56 and 120,134.36

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Solution

The fourth proportional to 419,734.24, 629,511.56 and 120,134.36 is: 180,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,734.24 : 629,511.56 = 120,134.36 : x
  2. Step 2: Convert to fraction form
    419,734.24/629,511.56 = 120,134.36/x
  3. Step 3: Cross multiply
    419,734.24x = 629,511.56 × 120,134.36
  4. Step 4: Simplify right side
    419,734.24x = 75,625,968,373.20
  5. Step 5: Solve for x
    x = 75,625,968,373.20/419,734.24
  6. Step 6: Final answer
    x = 180,175.84

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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.