Finding the Fourth Proportional to 2,128,993.18, 3,193,534.68 and 762,855.82
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Solution
The fourth proportional to 2,128,993.18, 3,193,534.68 and 762,855.82 is: 1,144,299.82
Step by Step Solution
- Step 1: Write the proportion equation
2,128,993.18 : 3,193,534.68 = 762,855.82 : x - Step 2: Convert to fraction form
2,128,993.18/3,193,534.68 = 762,855.82/x - Step 3: Cross multiply
2,128,993.18x = 3,193,534.68 × 762,855.82 - Step 4: Simplify right side
2,128,993.18x = 2,436,206,517,009.84 - Step 5: Solve for x
x = 2,436,206,517,009.84/2,128,993.18 - Step 6: Final answer
x = 1,144,299.82
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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.