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Finding the Fourth Proportional to 483.56, 720.30 and 482.64

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Solution

The fourth proportional to 483.56, 720.30 and 482.64 is: 718.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.56 : 720.30 = 482.64 : x
  2. Step 2: Convert to fraction form
    483.56/720.30 = 482.64/x
  3. Step 3: Cross multiply
    483.56x = 720.30 × 482.64
  4. Step 4: Simplify right side
    483.56x = 347,645.59
  5. Step 5: Solve for x
    x = 347,645.59/483.56
  6. Step 6: Final answer
    x = 718.94

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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.