Home / 436,273.20-654,447.06-120,729.60

Finding the Fourth Proportional to 436,273.20, 654,447.06 and 120,729.60

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Solution

The fourth proportional to 436,273.20, 654,447.06 and 120,729.60 is: 181,104.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,273.20 : 654,447.06 = 120,729.60 : x
  2. Step 2: Convert to fraction form
    436,273.20/654,447.06 = 120,729.60/x
  3. Step 3: Cross multiply
    436,273.20x = 654,447.06 × 120,729.60
  4. Step 4: Simplify right side
    436,273.20x = 79,011,131,774.98
  5. Step 5: Solve for x
    x = 79,011,131,774.98/436,273.20
  6. Step 6: Final answer
    x = 181,104.71

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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.