Finding the Fourth Proportional to 985,528.70, 1,476,219.45 and 819,640.70
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Solution
The fourth proportional to 985,528.70, 1,476,219.45 and 819,640.70 is: 1,227,736.49
Step by Step Solution
- Step 1: Write the proportion equation
985,528.70 : 1,476,219.45 = 819,640.70 : x - Step 2: Convert to fraction form
985,528.70/1,476,219.45 = 819,640.70/x - Step 3: Cross multiply
985,528.70x = 1,476,219.45 × 819,640.70 - Step 4: Simplify right side
985,528.70x = 1,209,969,543,351.62 - Step 5: Solve for x
x = 1,209,969,543,351.62/985,528.70 - Step 6: Final answer
x = 1,227,736.49
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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.