Finding the Fourth Proportional to 561,099.62, 774,305.52 and 306,451.82
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Solution
The fourth proportional to 561,099.62, 774,305.52 and 306,451.82 is: 422,896.98
Step by Step Solution
- Step 1: Write the proportion equation
561,099.62 : 774,305.52 = 306,451.82 : x - Step 2: Convert to fraction form
561,099.62/774,305.52 = 306,451.82/x - Step 3: Cross multiply
561,099.62x = 774,305.52 × 306,451.82 - Step 4: Simplify right side
561,099.62x = 237,287,335,840.05 - Step 5: Solve for x
x = 237,287,335,840.05/561,099.62 - Step 6: Final answer
x = 422,896.98
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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.