Finding the Fourth Proportional to 428,971.62, 591,961.10 and 235,375.08
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Solution
The fourth proportional to 428,971.62, 591,961.10 and 235,375.08 is: 324,806.78
Step by Step Solution
- Step 1: Write the proportion equation
428,971.62 : 591,961.10 = 235,375.08 : x - Step 2: Convert to fraction form
428,971.62/591,961.10 = 235,375.08/x - Step 3: Cross multiply
428,971.62x = 591,961.10 × 235,375.08 - Step 4: Simplify right side
428,971.62x = 139,332,889,698.09 - Step 5: Solve for x
x = 139,332,889,698.09/428,971.62 - Step 6: Final answer
x = 324,806.78
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.