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Finding the Fourth Proportional to 480.69, 662.57 and 417.51

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Solution

The fourth proportional to 480.69, 662.57 and 417.51 is: 575.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.69 : 662.57 = 417.51 : x
  2. Step 2: Convert to fraction form
    480.69/662.57 = 417.51/x
  3. Step 3: Cross multiply
    480.69x = 662.57 × 417.51
  4. Step 4: Simplify right side
    480.69x = 276,629.60
  5. Step 5: Solve for x
    x = 276,629.60/480.69
  6. Step 6: Final answer
    x = 575.48

Related Problems

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.