Finding the Fourth Proportional to 690,893.12, 1,036,339.68 and 269,873.75
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Solution
The fourth proportional to 690,893.12, 1,036,339.68 and 269,873.75 is: 404,810.63
Step by Step Solution
- Step 1: Write the proportion equation
690,893.12 : 1,036,339.68 = 269,873.75 : x - Step 2: Convert to fraction form
690,893.12/1,036,339.68 = 269,873.75/x - Step 3: Cross multiply
690,893.12x = 1,036,339.68 × 269,873.75 - Step 4: Simplify right side
690,893.12x = 279,680,875,715.40 - Step 5: Solve for x
x = 279,680,875,715.40/690,893.12 - Step 6: Final answer
x = 404,810.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.