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Finding the Fourth Proportional to 569.74, 852.99 and 433.34

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Solution

The fourth proportional to 569.74, 852.99 and 433.34 is: 648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.74 : 852.99 = 433.34 : x
  2. Step 2: Convert to fraction form
    569.74/852.99 = 433.34/x
  3. Step 3: Cross multiply
    569.74x = 852.99 × 433.34
  4. Step 4: Simplify right side
    569.74x = 369,634.69
  5. Step 5: Solve for x
    x = 369,634.69/569.74
  6. Step 6: Final answer
    x = 648.78

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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.