Finding the Fourth Proportional to 941,841.84, 1,299,743.28 and 512,121.60
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Solution
The fourth proportional to 941,841.84, 1,299,743.28 and 512,121.60 is: 706,728.65
Step by Step Solution
- Step 1: Write the proportion equation
941,841.84 : 1,299,743.28 = 512,121.60 : x - Step 2: Convert to fraction form
941,841.84/1,299,743.28 = 512,121.60/x - Step 3: Cross multiply
941,841.84x = 1,299,743.28 × 512,121.60 - Step 4: Simplify right side
941,841.84x = 665,626,608,142.85 - Step 5: Solve for x
x = 665,626,608,142.85/941,841.84 - Step 6: Final answer
x = 706,728.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.