Finding the Fourth Proportional to 1,259,891.70, 1,889,837.55 and 1,102,427.70
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Solution
The fourth proportional to 1,259,891.70, 1,889,837.55 and 1,102,427.70 is: 1,653,641.55
Step by Step Solution
- Step 1: Write the proportion equation
1,259,891.70 : 1,889,837.55 = 1,102,427.70 : x - Step 2: Convert to fraction form
1,259,891.70/1,889,837.55 = 1,102,427.70/x - Step 3: Cross multiply
1,259,891.70x = 1,889,837.55 × 1,102,427.70 - Step 4: Simplify right side
1,259,891.70x = 2,083,409,263,620.14 - Step 5: Solve for x
x = 2,083,409,263,620.14/1,259,891.70 - Step 6: Final answer
x = 1,653,641.55
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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.