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Finding the Fourth Proportional to 483.47, 662.85 and 474.71

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Solution

The fourth proportional to 483.47, 662.85 and 474.71 is: 650.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.47 : 662.85 = 474.71 : x
  2. Step 2: Convert to fraction form
    483.47/662.85 = 474.71/x
  3. Step 3: Cross multiply
    483.47x = 662.85 × 474.71
  4. Step 4: Simplify right side
    483.47x = 314,658.21
  5. Step 5: Solve for x
    x = 314,658.21/483.47
  6. Step 6: Final answer
    x = 650.84

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.