Home / 419,727.72-629,501.83-120,127.86

Finding the Fourth Proportional to 419,727.72, 629,501.83 and 120,127.86

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Solution

The fourth proportional to 419,727.72, 629,501.83 and 120,127.86 is: 180,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,727.72 : 629,501.83 = 120,127.86 : x
  2. Step 2: Convert to fraction form
    419,727.72/629,501.83 = 120,127.86/x
  3. Step 3: Cross multiply
    419,727.72x = 629,501.83 × 120,127.86
  4. Step 4: Simplify right side
    419,727.72x = 75,620,707,403.66
  5. Step 5: Solve for x
    x = 75,620,707,403.66/419,727.72
  6. Step 6: Final answer
    x = 180,166.10

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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.