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Finding the Fourth Proportional to 619.14, 928.66 and 375.60

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Solution

The fourth proportional to 619.14, 928.66 and 375.60 is: 563.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.14 : 928.66 = 375.60 : x
  2. Step 2: Convert to fraction form
    619.14/928.66 = 375.60/x
  3. Step 3: Cross multiply
    619.14x = 928.66 × 375.60
  4. Step 4: Simplify right side
    619.14x = 348,804.70
  5. Step 5: Solve for x
    x = 348,804.70/619.14
  6. Step 6: Final answer
    x = 563.37

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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.