Finding the Fourth Proportional to 1,442,878.68, 1,991,231.19 and 798,288.38
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Solution
The fourth proportional to 1,442,878.68, 1,991,231.19 and 798,288.38 is: 1,101,670.39
Step by Step Solution
- Step 1: Write the proportion equation
1,442,878.68 : 1,991,231.19 = 798,288.38 : x - Step 2: Convert to fraction form
1,442,878.68/1,991,231.19 = 798,288.38/x - Step 3: Cross multiply
1,442,878.68x = 1,991,231.19 × 798,288.38 - Step 4: Simplify right side
1,442,878.68x = 1,589,576,710,914.42 - Step 5: Solve for x
x = 1,589,576,710,914.42/1,442,878.68 - Step 6: Final answer
x = 1,101,670.39
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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.