Finding the Fourth Proportional to 419,679.16, 579,163.86 and 228,692.44
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Solution
The fourth proportional to 419,679.16, 579,163.86 and 228,692.44 is: 315,599.17
Step by Step Solution
- Step 1: Write the proportion equation
419,679.16 : 579,163.86 = 228,692.44 : x - Step 2: Convert to fraction form
419,679.16/579,163.86 = 228,692.44/x - Step 3: Cross multiply
419,679.16x = 579,163.86 × 228,692.44 - Step 4: Simplify right side
419,679.16x = 132,450,396,303.22 - Step 5: Solve for x
x = 132,450,396,303.22/419,679.16 - Step 6: Final answer
x = 315,599.17
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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.