Finding the Fourth Proportional to 589,718.40, 813,770.88 and 331,601.28
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Solution
The fourth proportional to 589,718.40, 813,770.88 and 331,601.28 is: 457,586.99
Step by Step Solution
- Step 1: Write the proportion equation
589,718.40 : 813,770.88 = 331,601.28 : x - Step 2: Convert to fraction form
589,718.40/813,770.88 = 331,601.28/x - Step 3: Cross multiply
589,718.40x = 813,770.88 × 331,601.28 - Step 4: Simplify right side
589,718.40x = 269,847,465,434.73 - Step 5: Solve for x
x = 269,847,465,434.73/589,718.40 - Step 6: Final answer
x = 457,586.99
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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.