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Finding the Fourth Proportional to 484.25, 664.13 and 477.36

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Solution

The fourth proportional to 484.25, 664.13 and 477.36 is: 654.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.25 : 664.13 = 477.36 : x
  2. Step 2: Convert to fraction form
    484.25/664.13 = 477.36/x
  3. Step 3: Cross multiply
    484.25x = 664.13 × 477.36
  4. Step 4: Simplify right side
    484.25x = 317,030.29
  5. Step 5: Solve for x
    x = 317,030.29/484.25
  6. Step 6: Final answer
    x = 654.69

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.