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Finding the Fourth Proportional to 1,601.52, 2,401.89 and 505.68

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Solution

The fourth proportional to 1,601.52, 2,401.89 and 505.68 is: 758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,601.52 : 2,401.89 = 505.68 : x
  2. Step 2: Convert to fraction form
    1,601.52/2,401.89 = 505.68/x
  3. Step 3: Cross multiply
    1,601.52x = 2,401.89 × 505.68
  4. Step 4: Simplify right side
    1,601.52x = 1,214,587.74
  5. Step 5: Solve for x
    x = 1,214,587.74/1,601.52
  6. Step 6: Final answer
    x = 758.40

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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.