Home / 1,190.58-1,784.79-496.80

Finding the Fourth Proportional to 1,190.58, 1,784.79 and 496.80

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Solution

The fourth proportional to 1,190.58, 1,784.79 and 496.80 is: 744.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.58 : 1,784.79 = 496.80 : x
  2. Step 2: Convert to fraction form
    1,190.58/1,784.79 = 496.80/x
  3. Step 3: Cross multiply
    1,190.58x = 1,784.79 × 496.80
  4. Step 4: Simplify right side
    1,190.58x = 886,683.67
  5. Step 5: Solve for x
    x = 886,683.67/1,190.58
  6. Step 6: Final answer
    x = 744.75

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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.