Home / 627.03-865.29-347.25

Finding the Fourth Proportional to 627.03, 865.29 and 347.25

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Solution

The fourth proportional to 627.03, 865.29 and 347.25 is: 479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627.03 : 865.29 = 347.25 : x
  2. Step 2: Convert to fraction form
    627.03/865.29 = 347.25/x
  3. Step 3: Cross multiply
    627.03x = 865.29 × 347.25
  4. Step 4: Simplify right side
    627.03x = 300,471.95
  5. Step 5: Solve for x
    x = 300,471.95/627.03
  6. Step 6: Final answer
    x = 479.20

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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.