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Finding the Fourth Proportional to 627.08, 940.06 and 395.80

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Solution

The fourth proportional to 627.08, 940.06 and 395.80 is: 593.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.08 : 940.06 = 395.80 : x
  2. Step 2: Convert to fraction form
    627.08/940.06 = 395.80/x
  3. Step 3: Cross multiply
    627.08x = 940.06 × 395.80
  4. Step 4: Simplify right side
    627.08x = 372,075.75
  5. Step 5: Solve for x
    x = 372,075.75/627.08
  6. Step 6: Final answer
    x = 593.35

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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.