Finding the Fourth Proportional to 419,708.70, 579,198.06 and 228,722.10
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Solution
The fourth proportional to 419,708.70, 579,198.06 and 228,722.10 is: 315,636.53
Step by Step Solution
- Step 1: Write the proportion equation
419,708.70 : 579,198.06 = 228,722.10 : x - Step 2: Convert to fraction form
419,708.70/579,198.06 = 228,722.10/x - Step 3: Cross multiply
419,708.70x = 579,198.06 × 228,722.10 - Step 4: Simplify right side
419,708.70x = 132,475,396,599.13 - Step 5: Solve for x
x = 132,475,396,599.13/419,708.70 - Step 6: Final answer
x = 315,636.53
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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.