Finding the Fourth Proportional to 420,896.40, 580,692.96 and 239,562.96
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Solution
The fourth proportional to 420,896.40, 580,692.96 and 239,562.96 is: 330,514.88
Step by Step Solution
- Step 1: Write the proportion equation
420,896.40 : 580,692.96 = 239,562.96 : x - Step 2: Convert to fraction form
420,896.40/580,692.96 = 239,562.96/x - Step 3: Cross multiply
420,896.40x = 580,692.96 × 239,562.96 - Step 4: Simplify right side
420,896.40x = 139,112,524,348.76 - Step 5: Solve for x
x = 139,112,524,348.76/420,896.40 - Step 6: Final answer
x = 330,514.88
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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.