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Finding the Fourth Proportional to 789.02, 1,181.03 and 479.88

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Solution

The fourth proportional to 789.02, 1,181.03 and 479.88 is: 718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    789.02 : 1,181.03 = 479.88 : x
  2. Step 2: Convert to fraction form
    789.02/1,181.03 = 479.88/x
  3. Step 3: Cross multiply
    789.02x = 1,181.03 × 479.88
  4. Step 4: Simplify right side
    789.02x = 566,750.28
  5. Step 5: Solve for x
    x = 566,750.28/789.02
  6. Step 6: Final answer
    x = 718.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.