Finding the Fourth Proportional to 586,638.68, 809,573.50 and 331,989.80
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Solution
The fourth proportional to 586,638.68, 809,573.50 and 331,989.80 is: 458,152.78
Step by Step Solution
- Step 1: Write the proportion equation
586,638.68 : 809,573.50 = 331,989.80 : x - Step 2: Convert to fraction form
586,638.68/809,573.50 = 331,989.80/x - Step 3: Cross multiply
586,638.68x = 809,573.50 × 331,989.80 - Step 4: Simplify right side
586,638.68x = 268,770,144,350.30 - Step 5: Solve for x
x = 268,770,144,350.30/586,638.68 - Step 6: Final answer
x = 458,152.78
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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.