Finding the Fourth Proportional to 1,586,439.55, 2,189,274.82 and 861,268.62
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Solution
The fourth proportional to 1,586,439.55, 2,189,274.82 and 861,268.62 is: 1,188,544.32
Step by Step Solution
- Step 1: Write the proportion equation
1,586,439.55 : 2,189,274.82 = 861,268.62 : x - Step 2: Convert to fraction form
1,586,439.55/2,189,274.82 = 861,268.62/x - Step 3: Cross multiply
1,586,439.55x = 2,189,274.82 × 861,268.62 - Step 4: Simplify right side
1,586,439.55x = 1,885,553,706,554.94 - Step 5: Solve for x
x = 1,885,553,706,554.94/1,586,439.55 - Step 6: Final answer
x = 1,188,544.32
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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.