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Finding the Fourth Proportional to 580.90, 875.34 and 480.44

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Solution

The fourth proportional to 580.90, 875.34 and 480.44 is: 723.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.90 : 875.34 = 480.44 : x
  2. Step 2: Convert to fraction form
    580.90/875.34 = 480.44/x
  3. Step 3: Cross multiply
    580.90x = 875.34 × 480.44
  4. Step 4: Simplify right side
    580.90x = 420,548.35
  5. Step 5: Solve for x
    x = 420,548.35/580.90
  6. Step 6: Final answer
    x = 723.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.