Finding the Fourth Proportional to 690,727.70, 1,036,231.68 and 217,302.95
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Solution
The fourth proportional to 690,727.70, 1,036,231.68 and 217,302.95 is: 325,998.51
Step by Step Solution
- Step 1: Write the proportion equation
690,727.70 : 1,036,231.68 = 217,302.95 : x - Step 2: Convert to fraction form
690,727.70/1,036,231.68 = 217,302.95/x - Step 3: Cross multiply
690,727.70x = 1,036,231.68 × 217,302.95 - Step 4: Simplify right side
690,727.70x = 225,176,200,947.46 - Step 5: Solve for x
x = 225,176,200,947.46/690,727.70 - Step 6: Final answer
x = 325,998.51
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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.