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Finding the Fourth Proportional to 482.36, 660.56 and 479.52

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Solution

The fourth proportional to 482.36, 660.56 and 479.52 is: 656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.36 : 660.56 = 479.52 : x
  2. Step 2: Convert to fraction form
    482.36/660.56 = 479.52/x
  3. Step 3: Cross multiply
    482.36x = 660.56 × 479.52
  4. Step 4: Simplify right side
    482.36x = 316,749.33
  5. Step 5: Solve for x
    x = 316,749.33/482.36
  6. Step 6: Final answer
    x = 656.67

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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.