Finding the Fourth Proportional to 757,745.18, 1,045,686.20 and 418,211
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Solution
The fourth proportional to 757,745.18, 1,045,686.20 and 418,211 is: 577,129.99
Step by Step Solution
- Step 1: Write the proportion equation
757,745.18 : 1,045,686.20 = 418,211 : x - Step 2: Convert to fraction form
757,745.18/1,045,686.20 = 418,211/x - Step 3: Cross multiply
757,745.18x = 1,045,686.20 × 418,211 - Step 4: Simplify right side
757,745.18x = 437,317,471,388.20 - Step 5: Solve for x
x = 437,317,471,388.20/757,745.18 - Step 6: Final answer
x = 577,129.99
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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.