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Finding the Fourth Proportional to 619.56, 929.34 and 609.35

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Solution

The fourth proportional to 619.56, 929.34 and 609.35 is: 914.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.56 : 929.34 = 609.35 : x
  2. Step 2: Convert to fraction form
    619.56/929.34 = 609.35/x
  3. Step 3: Cross multiply
    619.56x = 929.34 × 609.35
  4. Step 4: Simplify right side
    619.56x = 566,288.68
  5. Step 5: Solve for x
    x = 566,288.68/619.56
  6. Step 6: Final answer
    x = 914.02

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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.