Finding the Fourth Proportional to 547,791.53, 755,938.20 and 306,076.09
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Solution
The fourth proportional to 547,791.53, 755,938.20 and 306,076.09 is: 422,377.12
Step by Step Solution
- Step 1: Write the proportion equation
547,791.53 : 755,938.20 = 306,076.09 : x - Step 2: Convert to fraction form
547,791.53/755,938.20 = 306,076.09/x - Step 3: Cross multiply
547,791.53x = 755,938.20 × 306,076.09 - Step 4: Simplify right side
547,791.53x = 231,374,608,537.64 - Step 5: Solve for x
x = 231,374,608,537.64/547,791.53 - Step 6: Final answer
x = 422,377.12
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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.