Finding the Fourth Proportional to 874,836.44, 1,312,254.67 and 209,988.44
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Solution
The fourth proportional to 874,836.44, 1,312,254.67 and 209,988.44 is: 314,982.66
Step by Step Solution
- Step 1: Write the proportion equation
874,836.44 : 1,312,254.67 = 209,988.44 : x - Step 2: Convert to fraction form
874,836.44/1,312,254.67 = 209,988.44/x - Step 3: Cross multiply
874,836.44x = 1,312,254.67 × 209,988.44 - Step 4: Simplify right side
874,836.44x = 275,558,311,036.02 - Step 5: Solve for x
x = 275,558,311,036.02/874,836.44 - Step 6: Final answer
x = 314,982.66
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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.