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Finding the Fourth Proportional to 605.84, 835.76 and 384.44

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Solution

The fourth proportional to 605.84, 835.76 and 384.44 is: 530.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.84 : 835.76 = 384.44 : x
  2. Step 2: Convert to fraction form
    605.84/835.76 = 384.44/x
  3. Step 3: Cross multiply
    605.84x = 835.76 × 384.44
  4. Step 4: Simplify right side
    605.84x = 321,299.57
  5. Step 5: Solve for x
    x = 321,299.57/605.84
  6. Step 6: Final answer
    x = 530.34

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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.