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Finding the Fourth Proportional to 507.92, 756.81 and 453.39

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Solution

The fourth proportional to 507.92, 756.81 and 453.39 is: 675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.92 : 756.81 = 453.39 : x
  2. Step 2: Convert to fraction form
    507.92/756.81 = 453.39/x
  3. Step 3: Cross multiply
    507.92x = 756.81 × 453.39
  4. Step 4: Simplify right side
    507.92x = 343,133.11
  5. Step 5: Solve for x
    x = 343,133.11/507.92
  6. Step 6: Final answer
    x = 675.57

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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.