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Finding the Fourth Proportional to 483.48, 669.96 and 477.54

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Solution

The fourth proportional to 483.48, 669.96 and 477.54 is: 661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.48 : 669.96 = 477.54 : x
  2. Step 2: Convert to fraction form
    483.48/669.96 = 477.54/x
  3. Step 3: Cross multiply
    483.48x = 669.96 × 477.54
  4. Step 4: Simplify right side
    483.48x = 319,932.70
  5. Step 5: Solve for x
    x = 319,932.70/483.48
  6. Step 6: Final answer
    x = 661.73

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.