Home / 1,190.41-1,784.99-459.25

Finding the Fourth Proportional to 1,190.41, 1,784.99 and 459.25

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Solution

The fourth proportional to 1,190.41, 1,784.99 and 459.25 is: 688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.41 : 1,784.99 = 459.25 : x
  2. Step 2: Convert to fraction form
    1,190.41/1,784.99 = 459.25/x
  3. Step 3: Cross multiply
    1,190.41x = 1,784.99 × 459.25
  4. Step 4: Simplify right side
    1,190.41x = 819,754.36
  5. Step 5: Solve for x
    x = 819,754.36/1,190.41
  6. Step 6: Final answer
    x = 688.63

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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.