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Finding the Fourth Proportional to 605.73, 836.46 and 384.75

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Solution

The fourth proportional to 605.73, 836.46 and 384.75 is: 531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.73 : 836.46 = 384.75 : x
  2. Step 2: Convert to fraction form
    605.73/836.46 = 384.75/x
  3. Step 3: Cross multiply
    605.73x = 836.46 × 384.75
  4. Step 4: Simplify right side
    605.73x = 321,827.99
  5. Step 5: Solve for x
    x = 321,827.99/605.73
  6. Step 6: Final answer
    x = 531.31

Related Problems

Find fourth proportional to 302.86, 418.23 and 192.38
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Similar ratio
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1.5x scale

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.