Home / 419,927.66-629,706.18-120,340.25

Finding the Fourth Proportional to 419,927.66, 629,706.18 and 120,340.25

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Solution

The fourth proportional to 419,927.66, 629,706.18 and 120,340.25 is: 180,457.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,927.66 : 629,706.18 = 120,340.25 : x
  2. Step 2: Convert to fraction form
    419,927.66/629,706.18 = 120,340.25/x
  3. Step 3: Cross multiply
    419,927.66x = 629,706.18 × 120,340.25
  4. Step 4: Simplify right side
    419,927.66x = 75,778,998,791.89
  5. Step 5: Solve for x
    x = 75,778,998,791.89/419,927.66
  6. Step 6: Final answer
    x = 180,457.27

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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.