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Finding the Fourth Proportional to 605.57, 834.75 and 474.35

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Solution

The fourth proportional to 605.57, 834.75 and 474.35 is: 653.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.57 : 834.75 = 474.35 : x
  2. Step 2: Convert to fraction form
    605.57/834.75 = 474.35/x
  3. Step 3: Cross multiply
    605.57x = 834.75 × 474.35
  4. Step 4: Simplify right side
    605.57x = 395,959.49
  5. Step 5: Solve for x
    x = 395,959.49/605.57
  6. Step 6: Final answer
    x = 653.87

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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.