Finding the Fourth Proportional to 1,128,729.92, 1,557,717.28 and 746,093.12
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Solution
The fourth proportional to 1,128,729.92, 1,557,717.28 and 746,093.12 is: 1,029,654.77
Step by Step Solution
- Step 1: Write the proportion equation
1,128,729.92 : 1,557,717.28 = 746,093.12 : x - Step 2: Convert to fraction form
1,128,729.92/1,557,717.28 = 746,093.12/x - Step 3: Cross multiply
1,128,729.92x = 1,557,717.28 × 746,093.12 - Step 4: Simplify right side
1,128,729.92x = 1,162,202,145,513.11 - Step 5: Solve for x
x = 1,162,202,145,513.11/1,128,729.92 - Step 6: Final answer
x = 1,029,654.77
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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.