Finding the Fourth Proportional to 428,394.15, 591,207.46 and 237,403.44
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Solution
The fourth proportional to 428,394.15, 591,207.46 and 237,403.44 is: 327,629.79
Step by Step Solution
- Step 1: Write the proportion equation
428,394.15 : 591,207.46 = 237,403.44 : x - Step 2: Convert to fraction form
428,394.15/591,207.46 = 237,403.44/x - Step 3: Cross multiply
428,394.15x = 591,207.46 × 237,403.44 - Step 4: Simplify right side
428,394.15x = 140,354,684,164.15 - Step 5: Solve for x
x = 140,354,684,164.15/428,394.15 - Step 6: Final answer
x = 327,629.79
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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.