Finding the Fourth Proportional to 1,128,733.92, 1,557,722.80 and 746,097.12
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Solution
The fourth proportional to 1,128,733.92, 1,557,722.80 and 746,097.12 is: 1,029,660.29
Step by Step Solution
- Step 1: Write the proportion equation
1,128,733.92 : 1,557,722.80 = 746,097.12 : x - Step 2: Convert to fraction form
1,128,733.92/1,557,722.80 = 746,097.12/x - Step 3: Cross multiply
1,128,733.92x = 1,557,722.80 × 746,097.12 - Step 4: Simplify right side
1,128,733.92x = 1,162,212,494,838.34 - Step 5: Solve for x
x = 1,162,212,494,838.34/1,128,733.92 - Step 6: Final answer
x = 1,029,660.29
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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.