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Finding the Fourth Proportional to 451.02, 623.04 and 447.96

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Solution

The fourth proportional to 451.02, 623.04 and 447.96 is: 618.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.02 : 623.04 = 447.96 : x
  2. Step 2: Convert to fraction form
    451.02/623.04 = 447.96/x
  3. Step 3: Cross multiply
    451.02x = 623.04 × 447.96
  4. Step 4: Simplify right side
    451.02x = 279,097.00
  5. Step 5: Solve for x
    x = 279,097.00/451.02
  6. Step 6: Final answer
    x = 618.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.