Finding the Fourth Proportional to 421,842.96, 582,414.98 and 376,442.87
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Solution
The fourth proportional to 421,842.96, 582,414.98 and 376,442.87 is: 519,733.62
Step by Step Solution
- Step 1: Write the proportion equation
421,842.96 : 582,414.98 = 376,442.87 : x - Step 2: Convert to fraction form
421,842.96/582,414.98 = 376,442.87/x - Step 3: Cross multiply
421,842.96x = 582,414.98 × 376,442.87 - Step 4: Simplify right side
421,842.96x = 219,245,966,602.19 - Step 5: Solve for x
x = 219,245,966,602.19/421,842.96 - Step 6: Final answer
x = 519,733.62
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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.