Finding the Fourth Proportional to 1,931,682.11, 2,665,731.63 and 1,206,950.12
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Solution
The fourth proportional to 1,931,682.11, 2,665,731.63 and 1,206,950.12 is: 1,665,597.61
Step by Step Solution
- Step 1: Write the proportion equation
1,931,682.11 : 2,665,731.63 = 1,206,950.12 : x - Step 2: Convert to fraction form
1,931,682.11/2,665,731.63 = 1,206,950.12/x - Step 3: Cross multiply
1,931,682.11x = 2,665,731.63 × 1,206,950.12 - Step 4: Simplify right side
1,931,682.11x = 3,217,405,110,716.30 - Step 5: Solve for x
x = 3,217,405,110,716.30/1,931,682.11 - Step 6: Final answer
x = 1,665,597.61
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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.