Finding the Fourth Proportional to 459,817.79, 634,189.08 and 298,724.75
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Solution
The fourth proportional to 459,817.79, 634,189.08 and 298,724.75 is: 412,006.61
Step by Step Solution
- Step 1: Write the proportion equation
459,817.79 : 634,189.08 = 298,724.75 : x - Step 2: Convert to fraction form
459,817.79/634,189.08 = 298,724.75/x - Step 3: Cross multiply
459,817.79x = 634,189.08 × 298,724.75 - Step 4: Simplify right side
459,817.79x = 189,447,969,711.16 - Step 5: Solve for x
x = 189,447,969,711.16/459,817.79 - Step 6: Final answer
x = 412,006.61
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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.