Finding the Fourth Proportional to 428,589.63, 591,468.08 and 237,591.63
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Solution
The fourth proportional to 428,589.63, 591,468.08 and 237,591.63 is: 327,884.42
Step by Step Solution
- Step 1: Write the proportion equation
428,589.63 : 591,468.08 = 237,591.63 : x - Step 2: Convert to fraction form
428,589.63/591,468.08 = 237,591.63/x - Step 3: Cross multiply
428,589.63x = 591,468.08 × 237,591.63 - Step 4: Simplify right side
428,589.63x = 140,527,864,032.21 - Step 5: Solve for x
x = 140,527,864,032.21/428,589.63 - Step 6: Final answer
x = 327,884.42
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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.