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Finding the Fourth Proportional to 627.03, 941.41 and 611.47

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Solution

The fourth proportional to 627.03, 941.41 and 611.47 is: 918.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.03 : 941.41 = 611.47 : x
  2. Step 2: Convert to fraction form
    627.03/941.41 = 611.47/x
  3. Step 3: Cross multiply
    627.03x = 941.41 × 611.47
  4. Step 4: Simplify right side
    627.03x = 575,643.97
  5. Step 5: Solve for x
    x = 575,643.97/627.03
  6. Step 6: Final answer
    x = 918.05

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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.