Finding the Fourth Proportional to 1,373,198.80, 2,059,798.20 and 811,944.40
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Solution
The fourth proportional to 1,373,198.80, 2,059,798.20 and 811,944.40 is: 1,217,916.60
Step by Step Solution
- Step 1: Write the proportion equation
1,373,198.80 : 2,059,798.20 = 811,944.40 : x - Step 2: Convert to fraction form
1,373,198.80/2,059,798.20 = 811,944.40/x - Step 3: Cross multiply
1,373,198.80x = 2,059,798.20 × 811,944.40 - Step 4: Simplify right side
1,373,198.80x = 1,672,441,613,620.08 - Step 5: Solve for x
x = 1,672,441,613,620.08/1,373,198.80 - Step 6: Final answer
x = 1,217,916.60
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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.