Finding the Fourth Proportional to 428,851.44, 591,427.74 and 267,721.44
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Solution
The fourth proportional to 428,851.44, 591,427.74 and 267,721.44 is: 369,213.84
Step by Step Solution
- Step 1: Write the proportion equation
428,851.44 : 591,427.74 = 267,721.44 : x - Step 2: Convert to fraction form
428,851.44/591,427.74 = 267,721.44/x - Step 3: Cross multiply
428,851.44x = 591,427.74 × 267,721.44 - Step 4: Simplify right side
428,851.44x = 158,337,886,208.75 - Step 5: Solve for x
x = 158,337,886,208.75/428,851.44 - Step 6: Final answer
x = 369,213.84
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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.