Finding the Fourth Proportional to 880,386.68, 1,320,195.44 and 311,578.80
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Solution
The fourth proportional to 880,386.68, 1,320,195.44 and 311,578.80 is: 467,232.09
Step by Step Solution
- Step 1: Write the proportion equation
880,386.68 : 1,320,195.44 = 311,578.80 : x - Step 2: Convert to fraction form
880,386.68/1,320,195.44 = 311,578.80/x - Step 3: Cross multiply
880,386.68x = 1,320,195.44 × 311,578.80 - Step 4: Simplify right side
880,386.68x = 411,344,910,960.67 - Step 5: Solve for x
x = 411,344,910,960.67/880,386.68 - Step 6: Final answer
x = 467,232.09
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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.