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Finding the Fourth Proportional to 622.43, 854.37 and 550.93

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Solution

The fourth proportional to 622.43, 854.37 and 550.93 is: 756.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.43 : 854.37 = 550.93 : x
  2. Step 2: Convert to fraction form
    622.43/854.37 = 550.93/x
  3. Step 3: Cross multiply
    622.43x = 854.37 × 550.93
  4. Step 4: Simplify right side
    622.43x = 470,695.31
  5. Step 5: Solve for x
    x = 470,695.31/622.43
  6. Step 6: Final answer
    x = 756.22

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.