Finding the Fourth Proportional to 505,993.50, 698,261.67 and 279,634.14
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Solution
The fourth proportional to 505,993.50, 698,261.67 and 279,634.14 is: 385,889.94
Step by Step Solution
- Step 1: Write the proportion equation
505,993.50 : 698,261.67 = 279,634.14 : x - Step 2: Convert to fraction form
505,993.50/698,261.67 = 279,634.14/x - Step 3: Cross multiply
505,993.50x = 698,261.67 × 279,634.14 - Step 4: Simplify right side
505,993.50x = 195,257,801,585.41 - Step 5: Solve for x
x = 195,257,801,585.41/505,993.50 - Step 6: Final answer
x = 385,889.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.