Finding the Fourth Proportional to 1,330,976.09, 1,996,800.92 and 371,431.59
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Solution
The fourth proportional to 1,330,976.09, 1,996,800.92 and 371,431.59 is: 557,241.37
Step by Step Solution
- Step 1: Write the proportion equation
1,330,976.09 : 1,996,800.92 = 371,431.59 : x - Step 2: Convert to fraction form
1,330,976.09/1,996,800.92 = 371,431.59/x - Step 3: Cross multiply
1,330,976.09x = 1,996,800.92 × 371,431.59 - Step 4: Simplify right side
1,330,976.09x = 741,674,940,629.06 - Step 5: Solve for x
x = 741,674,940,629.06/1,330,976.09 - Step 6: Final answer
x = 557,241.37
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1.5x scale
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.