Finding the Fourth Proportional to 620,241.42, 855,884.43 and 351,969.42
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Solution
The fourth proportional to 620,241.42, 855,884.43 and 351,969.42 is: 485,690.15
Step by Step Solution
- Step 1: Write the proportion equation
620,241.42 : 855,884.43 = 351,969.42 : x - Step 2: Convert to fraction form
620,241.42/855,884.43 = 351,969.42/x - Step 3: Cross multiply
620,241.42x = 855,884.43 × 351,969.42 - Step 4: Simplify right side
620,241.42x = 301,245,146,414.13 - Step 5: Solve for x
x = 301,245,146,414.13/620,241.42 - Step 6: Final answer
x = 485,690.15
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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.