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Finding the Fourth Proportional to 464.11, 639.94 and 435.87

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Solution

The fourth proportional to 464.11, 639.94 and 435.87 is: 601.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    464.11 : 639.94 = 435.87 : x
  2. Step 2: Convert to fraction form
    464.11/639.94 = 435.87/x
  3. Step 3: Cross multiply
    464.11x = 639.94 × 435.87
  4. Step 4: Simplify right side
    464.11x = 278,930.65
  5. Step 5: Solve for x
    x = 278,930.65/464.11
  6. Step 6: Final answer
    x = 601.00

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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.