Finding the Fourth Proportional to 459,657.68, 688,976.76 and 193,339.28
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Solution
The fourth proportional to 459,657.68, 688,976.76 and 193,339.28 is: 289,794.51
Step by Step Solution
- Step 1: Write the proportion equation
459,657.68 : 688,976.76 = 193,339.28 : x - Step 2: Convert to fraction form
459,657.68/688,976.76 = 193,339.28/x - Step 3: Cross multiply
459,657.68x = 688,976.76 × 193,339.28 - Step 4: Simplify right side
459,657.68x = 133,206,270,715.13 - Step 5: Solve for x
x = 133,206,270,715.13/459,657.68 - Step 6: Final answer
x = 289,794.51
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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.