Finding the Fourth Proportional to 1,236,431.52, 1,706,859.84 and 828,799.62
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Solution
The fourth proportional to 1,236,431.52, 1,706,859.84 and 828,799.62 is: 1,144,135.17
Step by Step Solution
- Step 1: Write the proportion equation
1,236,431.52 : 1,706,859.84 = 828,799.62 : x - Step 2: Convert to fraction form
1,236,431.52/1,706,859.84 = 828,799.62/x - Step 3: Cross multiply
1,236,431.52x = 1,706,859.84 × 828,799.62 - Step 4: Simplify right side
1,236,431.52x = 1,414,644,786,785.26 - Step 5: Solve for x
x = 1,414,644,786,785.26/1,236,431.52 - Step 6: Final answer
x = 1,144,135.17
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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.