Finding the Fourth Proportional to 886,696.10, 1,330,238.55 and 287,555.30
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Solution
The fourth proportional to 886,696.10, 1,330,238.55 and 287,555.30 is: 431,395.99
Step by Step Solution
- Step 1: Write the proportion equation
886,696.10 : 1,330,238.55 = 287,555.30 : x - Step 2: Convert to fraction form
886,696.10/1,330,238.55 = 287,555.30/x - Step 3: Cross multiply
886,696.10x = 1,330,238.55 × 287,555.30 - Step 4: Simplify right side
886,696.10x = 382,517,145,316.82 - Step 5: Solve for x
x = 382,517,145,316.82/886,696.10 - Step 6: Final answer
x = 431,395.99
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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.