Finding the Fourth Proportional to 1,167,276.09, 1,611,449.87 and 828,553.53
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Solution
The fourth proportional to 1,167,276.09, 1,611,449.87 and 828,553.53 is: 1,143,836.05
Step by Step Solution
- Step 1: Write the proportion equation
1,167,276.09 : 1,611,449.87 = 828,553.53 : x - Step 2: Convert to fraction form
1,167,276.09/1,611,449.87 = 828,553.53/x - Step 3: Cross multiply
1,167,276.09x = 1,611,449.87 × 828,553.53 - Step 4: Simplify right side
1,167,276.09x = 1,335,172,474,063.77 - Step 5: Solve for x
x = 1,335,172,474,063.77/1,167,276.09 - Step 6: Final answer
x = 1,143,836.05
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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.