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Finding the Fourth Proportional to 675,205.20, 1,012,174.20 and 254,763.60

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Solution

The fourth proportional to 675,205.20, 1,012,174.20 and 254,763.60 is: 381,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,205.20 : 1,012,174.20 = 254,763.60 : x
  2. Step 2: Convert to fraction form
    675,205.20/1,012,174.20 = 254,763.60/x
  3. Step 3: Cross multiply
    675,205.20x = 1,012,174.20 × 254,763.60
  4. Step 4: Simplify right side
    675,205.20x = 257,865,143,019.12
  5. Step 5: Solve for x
    x = 257,865,143,019.12/675,205.20
  6. Step 6: Final answer
    x = 381,906.33

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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.