Finding the Fourth Proportional to 809,345.10, 1,214,163.45 and 336,078.30
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Solution
The fourth proportional to 809,345.10, 1,214,163.45 and 336,078.30 is: 504,177.99
Step by Step Solution
- Step 1: Write the proportion equation
809,345.10 : 1,214,163.45 = 336,078.30 : x - Step 2: Convert to fraction form
809,345.10/1,214,163.45 = 336,078.30/x - Step 3: Cross multiply
809,345.10x = 1,214,163.45 × 336,078.30 - Step 4: Simplify right side
809,345.10x = 408,053,988,198.14 - Step 5: Solve for x
x = 408,053,988,198.14/809,345.10 - Step 6: Final answer
x = 504,177.99
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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.