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Finding the Fourth Proportional to 483.39, 719.96 and 453.42

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Solution

The fourth proportional to 483.39, 719.96 and 453.42 is: 675.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.39 : 719.96 = 453.42 : x
  2. Step 2: Convert to fraction form
    483.39/719.96 = 453.42/x
  3. Step 3: Cross multiply
    483.39x = 719.96 × 453.42
  4. Step 4: Simplify right side
    483.39x = 326,442.00
  5. Step 5: Solve for x
    x = 326,442.00/483.39
  6. Step 6: Final answer
    x = 675.32

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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.