Finding the Fourth Proportional to 726,743.88, 1,090,120.68 and 253,427.40
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Solution
The fourth proportional to 726,743.88, 1,090,120.68 and 253,427.40 is: 380,142.79
Step by Step Solution
- Step 1: Write the proportion equation
726,743.88 : 1,090,120.68 = 253,427.40 : x - Step 2: Convert to fraction form
726,743.88/1,090,120.68 = 253,427.40/x - Step 3: Cross multiply
726,743.88x = 1,090,120.68 × 253,427.40 - Step 4: Simplify right side
726,743.88x = 276,266,449,618.63 - Step 5: Solve for x
x = 276,266,449,618.63/726,743.88 - Step 6: Final answer
x = 380,142.79
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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.