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Finding the Fourth Proportional to 796.30, 1,192.90 and 448.57

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Solution

The fourth proportional to 796.30, 1,192.90 and 448.57 is: 671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.30 : 1,192.90 = 448.57 : x
  2. Step 2: Convert to fraction form
    796.30/1,192.90 = 448.57/x
  3. Step 3: Cross multiply
    796.30x = 1,192.90 × 448.57
  4. Step 4: Simplify right side
    796.30x = 535,099.15
  5. Step 5: Solve for x
    x = 535,099.15/796.30
  6. Step 6: Final answer
    x = 671.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.