Finding the Fourth Proportional to 744,893.68, 1,027,974.72 and 405,383.44
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Solution
The fourth proportional to 744,893.68, 1,027,974.72 and 405,383.44 is: 559,440.82
Step by Step Solution
- Step 1: Write the proportion equation
744,893.68 : 1,027,974.72 = 405,383.44 : x - Step 2: Convert to fraction form
744,893.68/1,027,974.72 = 405,383.44/x - Step 3: Cross multiply
744,893.68x = 1,027,974.72 × 405,383.44 - Step 4: Simplify right side
744,893.68x = 416,723,928,226.64 - Step 5: Solve for x
x = 416,723,928,226.64/744,893.68 - Step 6: Final answer
x = 559,440.82
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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.