Finding the Fourth Proportional to 722,249.11, 996,702.87 and 399,958.82
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Solution
The fourth proportional to 722,249.11, 996,702.87 and 399,958.82 is: 551,942.67
Step by Step Solution
- Step 1: Write the proportion equation
722,249.11 : 996,702.87 = 399,958.82 : x - Step 2: Convert to fraction form
722,249.11/996,702.87 = 399,958.82/x - Step 3: Cross multiply
722,249.11x = 996,702.87 × 399,958.82 - Step 4: Simplify right side
722,249.11x = 398,640,101,284.06 - Step 5: Solve for x
x = 398,640,101,284.06/722,249.11 - Step 6: Final answer
x = 551,942.67
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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.