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Finding the Fourth Proportional to 1,604.63, 2,408.03 and 578.63

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Solution

The fourth proportional to 1,604.63, 2,408.03 and 578.63 is: 868.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,604.63 : 2,408.03 = 578.63 : x
  2. Step 2: Convert to fraction form
    1,604.63/2,408.03 = 578.63/x
  3. Step 3: Cross multiply
    1,604.63x = 2,408.03 × 578.63
  4. Step 4: Simplify right side
    1,604.63x = 1,393,343.47
  5. Step 5: Solve for x
    x = 1,393,343.47/1,604.63
  6. Step 6: Final answer
    x = 868.33

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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.