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Finding the Fourth Proportional to 482.68, 670.61 and 476.92

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Solution

The fourth proportional to 482.68, 670.61 and 476.92 is: 662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.68 : 670.61 = 476.92 : x
  2. Step 2: Convert to fraction form
    482.68/670.61 = 476.92/x
  3. Step 3: Cross multiply
    482.68x = 670.61 × 476.92
  4. Step 4: Simplify right side
    482.68x = 319,827.32
  5. Step 5: Solve for x
    x = 319,827.32/482.68
  6. Step 6: Final answer
    x = 662.61

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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.