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Finding the Fourth Proportional to 1,003.77, 1,504.41 and 483.64

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Solution

The fourth proportional to 1,003.77, 1,504.41 and 483.64 is: 724.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003.77 : 1,504.41 = 483.64 : x
  2. Step 2: Convert to fraction form
    1,003.77/1,504.41 = 483.64/x
  3. Step 3: Cross multiply
    1,003.77x = 1,504.41 × 483.64
  4. Step 4: Simplify right side
    1,003.77x = 727,592.85
  5. Step 5: Solve for x
    x = 727,592.85/1,003.77
  6. Step 6: Final answer
    x = 724.86

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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.