Finding the Fourth Proportional to 1,543,292.72, 2,129,218.56 and 898,576.44
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Solution
The fourth proportional to 1,543,292.72, 2,129,218.56 and 898,576.44 is: 1,239,729.58
Step by Step Solution
- Step 1: Write the proportion equation
1,543,292.72 : 2,129,218.56 = 898,576.44 : x - Step 2: Convert to fraction form
1,543,292.72/2,129,218.56 = 898,576.44/x - Step 3: Cross multiply
1,543,292.72x = 2,129,218.56 × 898,576.44 - Step 4: Simplify right side
1,543,292.72x = 1,913,265,633,626.73 - Step 5: Solve for x
x = 1,913,265,633,626.73/1,543,292.72 - Step 6: Final answer
x = 1,239,729.58
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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.