Finding the Fourth Proportional to 1,556,260.68, 2,147,639.74 and 840,868.68
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Solution
The fourth proportional to 1,556,260.68, 2,147,639.74 and 840,868.68 is: 1,160,398.78
Step by Step Solution
- Step 1: Write the proportion equation
1,556,260.68 : 2,147,639.74 = 840,868.68 : x - Step 2: Convert to fraction form
1,556,260.68/2,147,639.74 = 840,868.68/x - Step 3: Cross multiply
1,556,260.68x = 2,147,639.74 × 840,868.68 - Step 4: Simplify right side
1,556,260.68x = 1,805,882,993,289.34 - Step 5: Solve for x
x = 1,805,882,993,289.34/1,556,260.68 - Step 6: Final answer
x = 1,160,398.78
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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.