Finding the Fourth Proportional to 505,918.36, 698,181.42 and 279,578.44
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Solution
The fourth proportional to 505,918.36, 698,181.42 and 279,578.44 is: 385,826.03
Step by Step Solution
- Step 1: Write the proportion equation
505,918.36 : 698,181.42 = 279,578.44 : x - Step 2: Convert to fraction form
505,918.36/698,181.42 = 279,578.44/x - Step 3: Cross multiply
505,918.36x = 698,181.42 × 279,578.44 - Step 4: Simplify right side
505,918.36x = 195,196,472,240.59 - Step 5: Solve for x
x = 195,196,472,240.59/505,918.36 - Step 6: Final answer
x = 385,826.03
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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.