Finding the Fourth Proportional to 1,507,087.11, 2,079,782.68 and 818,761.67
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Solution
The fourth proportional to 1,507,087.11, 2,079,782.68 and 818,761.67 is: 1,129,892.45
Step by Step Solution
- Step 1: Write the proportion equation
1,507,087.11 : 2,079,782.68 = 818,761.67 : x - Step 2: Convert to fraction form
1,507,087.11/2,079,782.68 = 818,761.67/x - Step 3: Cross multiply
1,507,087.11x = 2,079,782.68 × 818,761.67 - Step 4: Simplify right side
1,507,087.11x = 1,702,846,340,313.88 - Step 5: Solve for x
x = 1,702,846,340,313.88/1,507,087.11 - Step 6: Final answer
x = 1,129,892.45
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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.