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Finding the Fourth Proportional to 1,505.89, 2,258.84 and 465.85

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Solution

The fourth proportional to 1,505.89, 2,258.84 and 465.85 is: 698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.89 : 2,258.84 = 465.85 : x
  2. Step 2: Convert to fraction form
    1,505.89/2,258.84 = 465.85/x
  3. Step 3: Cross multiply
    1,505.89x = 2,258.84 × 465.85
  4. Step 4: Simplify right side
    1,505.89x = 1,052,280.61
  5. Step 5: Solve for x
    x = 1,052,280.61/1,505.89
  6. Step 6: Final answer
    x = 698.78

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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.