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Finding the Fourth Proportional to 571.95, 788.37 and 414.60

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Solution

The fourth proportional to 571.95, 788.37 and 414.60 is: 571.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.95 : 788.37 = 414.60 : x
  2. Step 2: Convert to fraction form
    571.95/788.37 = 414.60/x
  3. Step 3: Cross multiply
    571.95x = 788.37 × 414.60
  4. Step 4: Simplify right side
    571.95x = 326,858.20
  5. Step 5: Solve for x
    x = 326,858.20/571.95
  6. Step 6: Final answer
    x = 571.48

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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.