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Finding the Fourth Proportional to 605,115.45, 908,234.03 and 305,806.71

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Solution

The fourth proportional to 605,115.45, 908,234.03 and 305,806.71 is: 458,993.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,115.45 : 908,234.03 = 305,806.71 : x
  2. Step 2: Convert to fraction form
    605,115.45/908,234.03 = 305,806.71/x
  3. Step 3: Cross multiply
    605,115.45x = 908,234.03 × 305,806.71
  4. Step 4: Simplify right side
    605,115.45x = 277,744,059,095.31
  5. Step 5: Solve for x
    x = 277,744,059,095.31/605,115.45
  6. Step 6: Final answer
    x = 458,993.50

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1.5x scale

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.