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Finding the Fourth Proportional to 662.35, 914.14 and 382.59

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Solution

The fourth proportional to 662.35, 914.14 and 382.59 is: 528.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.35 : 914.14 = 382.59 : x
  2. Step 2: Convert to fraction form
    662.35/914.14 = 382.59/x
  3. Step 3: Cross multiply
    662.35x = 914.14 × 382.59
  4. Step 4: Simplify right side
    662.35x = 349,740.82
  5. Step 5: Solve for x
    x = 349,740.82/662.35
  6. Step 6: Final answer
    x = 528.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.