Finding the Fourth Proportional to 1,678,805.68, 2,519,055.36 and 825,841.60
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Solution
The fourth proportional to 1,678,805.68, 2,519,055.36 and 825,841.60 is: 1,239,178.98
Step by Step Solution
- Step 1: Write the proportion equation
1,678,805.68 : 2,519,055.36 = 825,841.60 : x - Step 2: Convert to fraction form
1,678,805.68/2,519,055.36 = 825,841.60/x - Step 3: Cross multiply
1,678,805.68x = 2,519,055.36 × 825,841.60 - Step 4: Simplify right side
1,678,805.68x = 2,080,340,708,990.98 - Step 5: Solve for x
x = 2,080,340,708,990.98/1,678,805.68 - Step 6: Final answer
x = 1,239,178.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.