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Finding the Fourth Proportional to 569.79, 855.14 and 533.34

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Solution

The fourth proportional to 569.79, 855.14 and 533.34 is: 800.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.79 : 855.14 = 533.34 : x
  2. Step 2: Convert to fraction form
    569.79/855.14 = 533.34/x
  3. Step 3: Cross multiply
    569.79x = 855.14 × 533.34
  4. Step 4: Simplify right side
    569.79x = 456,077.70
  5. Step 5: Solve for x
    x = 456,077.70/569.79
  6. Step 6: Final answer
    x = 800.43

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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.