Home / 436,291.20-654,474.06-120,747.60

Finding the Fourth Proportional to 436,291.20, 654,474.06 and 120,747.60

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Solution

The fourth proportional to 436,291.20, 654,474.06 and 120,747.60 is: 181,131.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,291.20 : 654,474.06 = 120,747.60 : x
  2. Step 2: Convert to fraction form
    436,291.20/654,474.06 = 120,747.60/x
  3. Step 3: Cross multiply
    436,291.20x = 654,474.06 × 120,747.60
  4. Step 4: Simplify right side
    436,291.20x = 79,026,172,007.26
  5. Step 5: Solve for x
    x = 79,026,172,007.26/436,291.20
  6. Step 6: Final answer
    x = 181,131.71

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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.