Finding the Fourth Proportional to 1,586,626.12, 2,189,582.09 and 861,504.40
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Solution
The fourth proportional to 1,586,626.12, 2,189,582.09 and 861,504.40 is: 1,188,896.73
Step by Step Solution
- Step 1: Write the proportion equation
1,586,626.12 : 2,189,582.09 = 861,504.40 : x - Step 2: Convert to fraction form
1,586,626.12/2,189,582.09 = 861,504.40/x - Step 3: Cross multiply
1,586,626.12x = 2,189,582.09 × 861,504.40 - Step 4: Simplify right side
1,586,626.12x = 1,886,334,604,696.20 - Step 5: Solve for x
x = 1,886,334,604,696.20/1,586,626.12 - Step 6: Final answer
x = 1,188,896.73
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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.