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Finding the Fourth Proportional to 573.35, 859.75 and 486.41

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Solution

The fourth proportional to 573.35, 859.75 and 486.41 is: 729.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.35 : 859.75 = 486.41 : x
  2. Step 2: Convert to fraction form
    573.35/859.75 = 486.41/x
  3. Step 3: Cross multiply
    573.35x = 859.75 × 486.41
  4. Step 4: Simplify right side
    573.35x = 418,185.48
  5. Step 5: Solve for x
    x = 418,185.48/573.35
  6. Step 6: Final answer
    x = 729.38

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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.