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Finding the Fourth Proportional to 580.30, 800.94 and 383.83

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Solution

The fourth proportional to 580.30, 800.94 and 383.83 is: 529.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.30 : 800.94 = 383.83 : x
  2. Step 2: Convert to fraction form
    580.30/800.94 = 383.83/x
  3. Step 3: Cross multiply
    580.30x = 800.94 × 383.83
  4. Step 4: Simplify right side
    580.30x = 307,424.80
  5. Step 5: Solve for x
    x = 307,424.80/580.30
  6. Step 6: Final answer
    x = 529.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.