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Finding the Fourth Proportional to 482.91, 720.58 and 453.53

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Solution

The fourth proportional to 482.91, 720.58 and 453.53 is: 676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.91 : 720.58 = 453.53 : x
  2. Step 2: Convert to fraction form
    482.91/720.58 = 453.53/x
  3. Step 3: Cross multiply
    482.91x = 720.58 × 453.53
  4. Step 4: Simplify right side
    482.91x = 326,804.65
  5. Step 5: Solve for x
    x = 326,804.65/482.91
  6. Step 6: Final answer
    x = 676.74

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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.