Home / 419,749.90-629,439.09-120,162.22

Finding the Fourth Proportional to 419,749.90, 629,439.09 and 120,162.22

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Solution

The fourth proportional to 419,749.90, 629,439.09 and 120,162.22 is: 180,190.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,749.90 : 629,439.09 = 120,162.22 : x
  2. Step 2: Convert to fraction form
    419,749.90/629,439.09 = 120,162.22/x
  3. Step 3: Cross multiply
    419,749.90x = 629,439.09 × 120,162.22
  4. Step 4: Simplify right side
    419,749.90x = 75,634,798,409.18
  5. Step 5: Solve for x
    x = 75,634,798,409.18/419,749.90
  6. Step 6: Final answer
    x = 180,190.15

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1.5x scale

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.