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Finding the Fourth Proportional to 1,136.82, 1,704.22 and 406.24

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Solution

The fourth proportional to 1,136.82, 1,704.22 and 406.24 is: 609.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136.82 : 1,704.22 = 406.24 : x
  2. Step 2: Convert to fraction form
    1,136.82/1,704.22 = 406.24/x
  3. Step 3: Cross multiply
    1,136.82x = 1,704.22 × 406.24
  4. Step 4: Simplify right side
    1,136.82x = 692,322.33
  5. Step 5: Solve for x
    x = 692,322.33/1,136.82
  6. Step 6: Final answer
    x = 609.00

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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.