Home / 419,270.76-629,032.06-131,070.80

Finding the Fourth Proportional to 419,270.76, 629,032.06 and 131,070.80

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Solution

The fourth proportional to 419,270.76, 629,032.06 and 131,070.80 is: 196,645.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,270.76 : 629,032.06 = 131,070.80 : x
  2. Step 2: Convert to fraction form
    419,270.76/629,032.06 = 131,070.80/x
  3. Step 3: Cross multiply
    419,270.76x = 629,032.06 × 131,070.80
  4. Step 4: Simplify right side
    419,270.76x = 82,447,735,329.85
  5. Step 5: Solve for x
    x = 82,447,735,329.85/419,270.76
  6. Step 6: Final answer
    x = 196,645.56

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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.