Finding the Fourth Proportional to 899,905.68, 1,350,231.12 and 394,205.40
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Solution
The fourth proportional to 899,905.68, 1,350,231.12 and 394,205.40 is: 591,471.32
Step by Step Solution
- Step 1: Write the proportion equation
899,905.68 : 1,350,231.12 = 394,205.40 : x - Step 2: Convert to fraction form
899,905.68/1,350,231.12 = 394,205.40/x - Step 3: Cross multiply
899,905.68x = 1,350,231.12 × 394,205.40 - Step 4: Simplify right side
899,905.68x = 532,268,398,752.05 - Step 5: Solve for x
x = 532,268,398,752.05/899,905.68 - Step 6: Final answer
x = 591,471.32
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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.