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Finding the Fourth Proportional to 606,436.70, 908,889.60 and 306,999.95

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Solution

The fourth proportional to 606,436.70, 908,889.60 and 306,999.95 is: 460,112.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,436.70 : 908,889.60 = 306,999.95 : x
  2. Step 2: Convert to fraction form
    606,436.70/908,889.60 = 306,999.95/x
  3. Step 3: Cross multiply
    606,436.70x = 908,889.60 × 306,999.95
  4. Step 4: Simplify right side
    606,436.70x = 279,029,061,755.52
  5. Step 5: Solve for x
    x = 279,029,061,755.52/606,436.70
  6. Step 6: Final answer
    x = 460,112.43

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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.