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Finding the Fourth Proportional to 3,080.03, 4,619.03 and 999.54

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Solution

The fourth proportional to 3,080.03, 4,619.03 and 999.54 is: 1,498.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.03 : 4,619.03 = 999.54 : x
  2. Step 2: Convert to fraction form
    3,080.03/4,619.03 = 999.54/x
  3. Step 3: Cross multiply
    3,080.03x = 4,619.03 × 999.54
  4. Step 4: Simplify right side
    3,080.03x = 4,616,900.25
  5. Step 5: Solve for x
    x = 4,616,900.25/3,080.03
  6. Step 6: Final answer
    x = 1,498.98

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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.