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Finding the Fourth Proportional to 619.44, 922.76 and 609.11

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Solution

The fourth proportional to 619.44, 922.76 and 609.11 is: 907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    619.44 : 922.76 = 609.11 : x
  2. Step 2: Convert to fraction form
    619.44/922.76 = 609.11/x
  3. Step 3: Cross multiply
    619.44x = 922.76 × 609.11
  4. Step 4: Simplify right side
    619.44x = 562,062.34
  5. Step 5: Solve for x
    x = 562,062.34/619.44
  6. Step 6: Final answer
    x = 907.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.