Finding the Fourth Proportional to 722,137.44, 996,537.60 and 399,840.48
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Solution
The fourth proportional to 722,137.44, 996,537.60 and 399,840.48 is: 551,773.18
Step by Step Solution
- Step 1: Write the proportion equation
722,137.44 : 996,537.60 = 399,840.48 : x - Step 2: Convert to fraction form
722,137.44/996,537.60 = 399,840.48/x - Step 3: Cross multiply
722,137.44x = 996,537.60 × 399,840.48 - Step 4: Simplify right side
722,137.44x = 398,456,072,322.05 - Step 5: Solve for x
x = 398,456,072,322.05/722,137.44 - Step 6: Final answer
x = 551,773.18
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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.