Finding the Fourth Proportional to 748,243.58, 1,122,531.21 and 215,723.05
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Solution
The fourth proportional to 748,243.58, 1,122,531.21 and 215,723.05 is: 323,632.39
Step by Step Solution
- Step 1: Write the proportion equation
748,243.58 : 1,122,531.21 = 215,723.05 : x - Step 2: Convert to fraction form
748,243.58/1,122,531.21 = 215,723.05/x - Step 3: Cross multiply
748,243.58x = 1,122,531.21 × 215,723.05 - Step 4: Simplify right side
748,243.58x = 242,155,853,535.06 - Step 5: Solve for x
x = 242,155,853,535.06/748,243.58 - Step 6: Final answer
x = 323,632.39
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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.