Finding the Fourth Proportional to 428,759.16, 591,955.16 and 276,062.08
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Solution
The fourth proportional to 428,759.16, 591,955.16 and 276,062.08 is: 381,137.92
Step by Step Solution
- Step 1: Write the proportion equation
428,759.16 : 591,955.16 = 276,062.08 : x - Step 2: Convert to fraction form
428,759.16/591,955.16 = 276,062.08/x - Step 3: Cross multiply
428,759.16x = 591,955.16 × 276,062.08 - Step 4: Simplify right side
428,759.16x = 163,416,372,736.33 - Step 5: Solve for x
x = 163,416,372,736.33/428,759.16 - Step 6: Final answer
x = 381,137.92
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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.