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Finding the Fourth Proportional to 601.11, 899.79 and 417.96

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Solution

The fourth proportional to 601.11, 899.79 and 417.96 is: 625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    601.11 : 899.79 = 417.96 : x
  2. Step 2: Convert to fraction form
    601.11/899.79 = 417.96/x
  3. Step 3: Cross multiply
    601.11x = 899.79 × 417.96
  4. Step 4: Simplify right side
    601.11x = 376,076.23
  5. Step 5: Solve for x
    x = 376,076.23/601.11
  6. Step 6: Final answer
    x = 625.64

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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.