Finding the Fourth Proportional to 1,099,589.96, 1,517,530.74 and 640,680.68
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Solution
The fourth proportional to 1,099,589.96, 1,517,530.74 and 640,680.68 is: 884,195.62
Step by Step Solution
- Step 1: Write the proportion equation
1,099,589.96 : 1,517,530.74 = 640,680.68 : x - Step 2: Convert to fraction form
1,099,589.96/1,517,530.74 = 640,680.68/x - Step 3: Cross multiply
1,099,589.96x = 1,517,530.74 × 640,680.68 - Step 4: Simplify right side
1,099,589.96x = 972,252,626,424.10 - Step 5: Solve for x
x = 972,252,626,424.10/1,099,589.96 - Step 6: Final answer
x = 884,195.62
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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.