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Finding the Fourth Proportional to 569.37, 852.81 and 423.35

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Solution

The fourth proportional to 569.37, 852.81 and 423.35 is: 634.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.37 : 852.81 = 423.35 : x
  2. Step 2: Convert to fraction form
    569.37/852.81 = 423.35/x
  3. Step 3: Cross multiply
    569.37x = 852.81 × 423.35
  4. Step 4: Simplify right side
    569.37x = 361,032.85
  5. Step 5: Solve for x
    x = 361,032.85/569.37
  6. Step 6: Final answer
    x = 634.09

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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.