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Finding the Fourth Proportional to 836.93, 1,254.49 and 446.48

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Solution

The fourth proportional to 836.93, 1,254.49 and 446.48 is: 669.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.93 : 1,254.49 = 446.48 : x
  2. Step 2: Convert to fraction form
    836.93/1,254.49 = 446.48/x
  3. Step 3: Cross multiply
    836.93x = 1,254.49 × 446.48
  4. Step 4: Simplify right side
    836.93x = 560,102.01
  5. Step 5: Solve for x
    x = 560,102.01/836.93
  6. Step 6: Final answer
    x = 669.23

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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.