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Finding the Fourth Proportional to 1,255.03, 1,882.24 and 524.21

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Solution

The fourth proportional to 1,255.03, 1,882.24 and 524.21 is: 786.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,255.03 : 1,882.24 = 524.21 : x
  2. Step 2: Convert to fraction form
    1,255.03/1,882.24 = 524.21/x
  3. Step 3: Cross multiply
    1,255.03x = 1,882.24 × 524.21
  4. Step 4: Simplify right side
    1,255.03x = 986,678.31
  5. Step 5: Solve for x
    x = 986,678.31/1,255.03
  6. Step 6: Final answer
    x = 786.18

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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.