Finding the Fourth Proportional to 428,546.09, 591,353.84 and 237,543.23
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Solution
The fourth proportional to 428,546.09, 591,353.84 and 237,543.23 is: 327,787.61
Step by Step Solution
- Step 1: Write the proportion equation
428,546.09 : 591,353.84 = 237,543.23 : x - Step 2: Convert to fraction form
428,546.09/591,353.84 = 237,543.23/x - Step 3: Cross multiply
428,546.09x = 591,353.84 × 237,543.23 - Step 4: Simplify right side
428,546.09x = 140,472,097,082.02 - Step 5: Solve for x
x = 140,472,097,082.02/428,546.09 - Step 6: Final answer
x = 327,787.61
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1.5x scale
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.