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Finding the Fourth Proportional to 605.09, 835.50 and 464.99

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Solution

The fourth proportional to 605.09, 835.50 and 464.99 is: 642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.09 : 835.50 = 464.99 : x
  2. Step 2: Convert to fraction form
    605.09/835.50 = 464.99/x
  3. Step 3: Cross multiply
    605.09x = 835.50 × 464.99
  4. Step 4: Simplify right side
    605.09x = 388,499.15
  5. Step 5: Solve for x
    x = 388,499.15/605.09
  6. Step 6: Final answer
    x = 642.05

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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.