Finding the Fourth Proportional to 1,443,358.40, 1,991,785.44 and 798,805.76
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Solution
The fourth proportional to 1,443,358.40, 1,991,785.44 and 798,805.76 is: 1,102,324.75
Step by Step Solution
- Step 1: Write the proportion equation
1,443,358.40 : 1,991,785.44 = 798,805.76 : x - Step 2: Convert to fraction form
1,443,358.40/1,991,785.44 = 798,805.76/x - Step 3: Cross multiply
1,443,358.40x = 1,991,785.44 × 798,805.76 - Step 4: Simplify right side
1,443,358.40x = 1,591,049,682,156.13 - Step 5: Solve for x
x = 1,591,049,682,156.13/1,443,358.40 - Step 6: Final answer
x = 1,102,324.75
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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.