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Finding the Fourth Proportional to 482.94, 671.08 and 477.93

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Solution

The fourth proportional to 482.94, 671.08 and 477.93 is: 664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.94 : 671.08 = 477.93 : x
  2. Step 2: Convert to fraction form
    482.94/671.08 = 477.93/x
  3. Step 3: Cross multiply
    482.94x = 671.08 × 477.93
  4. Step 4: Simplify right side
    482.94x = 320,727.10
  5. Step 5: Solve for x
    x = 320,727.10/482.94
  6. Step 6: Final answer
    x = 664.11

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Double scale
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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.