Finding the Fourth Proportional to 422,407.08, 582,916.92 and 228,811.10
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Solution
The fourth proportional to 422,407.08, 582,916.92 and 228,811.10 is: 315,756.69
Step by Step Solution
- Step 1: Write the proportion equation
422,407.08 : 582,916.92 = 228,811.10 : x - Step 2: Convert to fraction form
422,407.08/582,916.92 = 228,811.10/x - Step 3: Cross multiply
422,407.08x = 582,916.92 × 228,811.10 - Step 4: Simplify right side
422,407.08x = 133,377,861,673.81 - Step 5: Solve for x
x = 133,377,861,673.81/422,407.08 - Step 6: Final answer
x = 315,756.69
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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.