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Finding the Fourth Proportional to 572.14, 788.25 and 394.93

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Solution

The fourth proportional to 572.14, 788.25 and 394.93 is: 544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.14 : 788.25 = 394.93 : x
  2. Step 2: Convert to fraction form
    572.14/788.25 = 394.93/x
  3. Step 3: Cross multiply
    572.14x = 788.25 × 394.93
  4. Step 4: Simplify right side
    572.14x = 311,303.57
  5. Step 5: Solve for x
    x = 311,303.57/572.14
  6. Step 6: Final answer
    x = 544.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.