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Finding the Fourth Proportional to 622.29, 858.83 and 466.77

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Solution

The fourth proportional to 622.29, 858.83 and 466.77 is: 644.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.29 : 858.83 = 466.77 : x
  2. Step 2: Convert to fraction form
    622.29/858.83 = 466.77/x
  3. Step 3: Cross multiply
    622.29x = 858.83 × 466.77
  4. Step 4: Simplify right side
    622.29x = 400,873.75
  5. Step 5: Solve for x
    x = 400,873.75/622.29
  6. Step 6: Final answer
    x = 644.19

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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.