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Finding the Fourth Proportional to 482.73, 720.73 and 477.60

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Solution

The fourth proportional to 482.73, 720.73 and 477.60 is: 713.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.73 : 720.73 = 477.60 : x
  2. Step 2: Convert to fraction form
    482.73/720.73 = 477.60/x
  3. Step 3: Cross multiply
    482.73x = 720.73 × 477.60
  4. Step 4: Simplify right side
    482.73x = 344,220.65
  5. Step 5: Solve for x
    x = 344,220.65/482.73
  6. Step 6: Final answer
    x = 713.07

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.