Home / 655.27-983.24-424.09

Finding the Fourth Proportional to 655.27, 983.24 and 424.09

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Solution

The fourth proportional to 655.27, 983.24 and 424.09 is: 636.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    655.27 : 983.24 = 424.09 : x
  2. Step 2: Convert to fraction form
    655.27/983.24 = 424.09/x
  3. Step 3: Cross multiply
    655.27x = 983.24 × 424.09
  4. Step 4: Simplify right side
    655.27x = 416,985.77
  5. Step 5: Solve for x
    x = 416,985.77/655.27
  6. Step 6: Final answer
    x = 636.36

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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.