Finding the Fourth Proportional to 1,286,623.26, 1,776,735.27 and 828,532.86
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Solution
The fourth proportional to 1,286,623.26, 1,776,735.27 and 828,532.86 is: 1,144,144.99
Step by Step Solution
- Step 1: Write the proportion equation
1,286,623.26 : 1,776,735.27 = 828,532.86 : x - Step 2: Convert to fraction form
1,286,623.26/1,776,735.27 = 828,532.86/x - Step 3: Cross multiply
1,286,623.26x = 1,776,735.27 × 828,532.86 - Step 4: Simplify right side
1,286,623.26x = 1,472,083,554,715.97 - Step 5: Solve for x
x = 1,472,083,554,715.97/1,286,623.26 - Step 6: Final answer
x = 1,144,144.99
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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.