Finding the Fourth Proportional to 459,516.81, 688,644.63 and 290,734.99
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Solution
The fourth proportional to 459,516.81, 688,644.63 and 290,734.99 is: 435,703.52
Step by Step Solution
- Step 1: Write the proportion equation
459,516.81 : 688,644.63 = 290,734.99 : x - Step 2: Convert to fraction form
459,516.81/688,644.63 = 290,734.99/x - Step 3: Cross multiply
459,516.81x = 688,644.63 × 290,734.99 - Step 4: Simplify right side
459,516.81x = 200,213,087,694.04 - Step 5: Solve for x
x = 200,213,087,694.04/459,516.81 - Step 6: Final answer
x = 435,703.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.