Finding the Fourth Proportional to 421,194.06, 580,913.37 and 318,172.05
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Solution
The fourth proportional to 421,194.06, 580,913.37 and 318,172.05 is: 438,824.80
Step by Step Solution
- Step 1: Write the proportion equation
421,194.06 : 580,913.37 = 318,172.05 : x - Step 2: Convert to fraction form
421,194.06/580,913.37 = 318,172.05/x - Step 3: Cross multiply
421,194.06x = 580,913.37 × 318,172.05 - Step 4: Simplify right side
421,194.06x = 184,830,397,805.31 - Step 5: Solve for x
x = 184,830,397,805.31/421,194.06 - Step 6: Final answer
x = 438,824.80
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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.