Finding the Fourth Proportional to 811,911.63, 1,216,912.44 and 331,843.26
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Solution
The fourth proportional to 811,911.63, 1,216,912.44 and 331,843.26 is: 497,374.56
Step by Step Solution
- Step 1: Write the proportion equation
811,911.63 : 1,216,912.44 = 331,843.26 : x - Step 2: Convert to fraction form
811,911.63/1,216,912.44 = 331,843.26/x - Step 3: Cross multiply
811,911.63x = 1,216,912.44 × 331,843.26 - Step 4: Simplify right side
811,911.63x = 403,824,191,224.15 - Step 5: Solve for x
x = 403,824,191,224.15/811,911.63 - Step 6: Final answer
x = 497,374.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.