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Finding the Fourth Proportional to 605,383.30, 908,074.95 and 285,460.72

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Solution

The fourth proportional to 605,383.30, 908,074.95 and 285,460.72 is: 428,191.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,383.30 : 908,074.95 = 285,460.72 : x
  2. Step 2: Convert to fraction form
    605,383.30/908,074.95 = 285,460.72/x
  3. Step 3: Cross multiply
    605,383.30x = 908,074.95 × 285,460.72
  4. Step 4: Simplify right side
    605,383.30x = 259,219,729,040.96
  5. Step 5: Solve for x
    x = 259,219,729,040.96/605,383.30
  6. Step 6: Final answer
    x = 428,191.08

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Similar ratio
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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.