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Finding the Fourth Proportional to 986.56, 1,480.04 and 337.26

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Solution

The fourth proportional to 986.56, 1,480.04 and 337.26 is: 505.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    986.56 : 1,480.04 = 337.26 : x
  2. Step 2: Convert to fraction form
    986.56/1,480.04 = 337.26/x
  3. Step 3: Cross multiply
    986.56x = 1,480.04 × 337.26
  4. Step 4: Simplify right side
    986.56x = 499,158.29
  5. Step 5: Solve for x
    x = 499,158.29/986.56
  6. Step 6: Final answer
    x = 505.96

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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.