Finding the Fourth Proportional to 722,190.09, 996,610.14 and 399,893.26
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Solution
The fourth proportional to 722,190.09, 996,610.14 and 399,893.26 is: 551,845.96
Step by Step Solution
- Step 1: Write the proportion equation
722,190.09 : 996,610.14 = 399,893.26 : x - Step 2: Convert to fraction form
722,190.09/996,610.14 = 399,893.26/x - Step 3: Cross multiply
722,190.09x = 996,610.14 × 399,893.26 - Step 4: Simplify right side
722,190.09x = 398,537,680,825.05 - Step 5: Solve for x
x = 398,537,680,825.05/722,190.09 - Step 6: Final answer
x = 551,845.96
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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.