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Finding the Fourth Proportional to 464.04, 696.78 and 399.75

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Solution

The fourth proportional to 464.04, 696.78 and 399.75 is: 600.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.04 : 696.78 = 399.75 : x
  2. Step 2: Convert to fraction form
    464.04/696.78 = 399.75/x
  3. Step 3: Cross multiply
    464.04x = 696.78 × 399.75
  4. Step 4: Simplify right side
    464.04x = 278,537.81
  5. Step 5: Solve for x
    x = 278,537.81/464.04
  6. Step 6: Final answer
    x = 600.25

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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.