Finding the Fourth Proportional to 745,087.23, 1,117,641.09 and 212,608.09
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Solution
The fourth proportional to 745,087.23, 1,117,641.09 and 212,608.09 is: 318,915.06
Step by Step Solution
- Step 1: Write the proportion equation
745,087.23 : 1,117,641.09 = 212,608.09 : x - Step 2: Convert to fraction form
745,087.23/1,117,641.09 = 212,608.09/x - Step 3: Cross multiply
745,087.23x = 1,117,641.09 × 212,608.09 - Step 4: Simplify right side
745,087.23x = 237,619,535,453.60 - Step 5: Solve for x
x = 237,619,535,453.60/745,087.23 - Step 6: Final answer
x = 318,915.06
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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.