Finding the Fourth Proportional to 828,467.82, 1,143,425.84 and 479,557.69
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Solution
The fourth proportional to 828,467.82, 1,143,425.84 and 479,557.69 is: 661,870.79
Step by Step Solution
- Step 1: Write the proportion equation
828,467.82 : 1,143,425.84 = 479,557.69 : x - Step 2: Convert to fraction form
828,467.82/1,143,425.84 = 479,557.69/x - Step 3: Cross multiply
828,467.82x = 1,143,425.84 × 479,557.69 - Step 4: Simplify right side
828,467.82x = 548,338,649,260.36 - Step 5: Solve for x
x = 548,338,649,260.36/828,467.82 - Step 6: Final answer
x = 661,870.79
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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.