Finding the Fourth Proportional to 828,383.09, 1,143,145.98 and 465,797.66
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Solution
The fourth proportional to 828,383.09, 1,143,145.98 and 465,797.66 is: 642,788.01
Step by Step Solution
- Step 1: Write the proportion equation
828,383.09 : 1,143,145.98 = 465,797.66 : x - Step 2: Convert to fraction form
828,383.09/1,143,145.98 = 465,797.66/x - Step 3: Cross multiply
828,383.09x = 1,143,145.98 × 465,797.66 - Step 4: Simplify right side
828,383.09x = 532,474,716,806.68 - Step 5: Solve for x
x = 532,474,716,806.68/828,383.09 - Step 6: Final answer
x = 642,788.01
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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.