Home / 1,190.26-1,784.18-573.78

Finding the Fourth Proportional to 1,190.26, 1,784.18 and 573.78

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Solution

The fourth proportional to 1,190.26, 1,784.18 and 573.78 is: 860.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.26 : 1,784.18 = 573.78 : x
  2. Step 2: Convert to fraction form
    1,190.26/1,784.18 = 573.78/x
  3. Step 3: Cross multiply
    1,190.26x = 1,784.18 × 573.78
  4. Step 4: Simplify right side
    1,190.26x = 1,023,726.80
  5. Step 5: Solve for x
    x = 1,023,726.80/1,190.26
  6. Step 6: Final answer
    x = 860.09

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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.