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Finding the Fourth Proportional to 627.93, 942.75 and 579.60

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Solution

The fourth proportional to 627.93, 942.75 and 579.60 is: 870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.93 : 942.75 = 579.60 : x
  2. Step 2: Convert to fraction form
    627.93/942.75 = 579.60/x
  3. Step 3: Cross multiply
    627.93x = 942.75 × 579.60
  4. Step 4: Simplify right side
    627.93x = 546,417.90
  5. Step 5: Solve for x
    x = 546,417.90/627.93
  6. Step 6: Final answer
    x = 870.19

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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.