Finding the Fourth Proportional to 419,683.61, 579,161.57 and 228,696.99
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Solution
The fourth proportional to 419,683.61, 579,161.57 and 228,696.99 is: 315,600.86
Step by Step Solution
- Step 1: Write the proportion equation
419,683.61 : 579,161.57 = 228,696.99 : x - Step 2: Convert to fraction form
419,683.61/579,161.57 = 228,696.99/x - Step 3: Cross multiply
419,683.61x = 579,161.57 × 228,696.99 - Step 4: Simplify right side
419,683.61x = 132,452,506,639.19 - Step 5: Solve for x
x = 132,452,506,639.19/419,683.61 - Step 6: Final answer
x = 315,600.86
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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.