Finding the Fourth Proportional to 728,181.41, 1,004,924.36 and 405,893.84
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Solution
The fourth proportional to 728,181.41, 1,004,924.36 and 405,893.84 is: 560,152.46
Step by Step Solution
- Step 1: Write the proportion equation
728,181.41 : 1,004,924.36 = 405,893.84 : x - Step 2: Convert to fraction form
728,181.41/1,004,924.36 = 405,893.84/x - Step 3: Cross multiply
728,181.41x = 1,004,924.36 × 405,893.84 - Step 4: Simplify right side
728,181.41x = 407,892,603,380.06 - Step 5: Solve for x
x = 407,892,603,380.06/728,181.41 - Step 6: Final answer
x = 560,152.46
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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.