Finding the Fourth Proportional to 934,936.92, 1,290,213.36 and 505,217.07
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Solution
The fourth proportional to 934,936.92, 1,290,213.36 and 505,217.07 is: 697,199.78
Step by Step Solution
- Step 1: Write the proportion equation
934,936.92 : 1,290,213.36 = 505,217.07 : x - Step 2: Convert to fraction form
934,936.92/1,290,213.36 = 505,217.07/x - Step 3: Cross multiply
934,936.92x = 1,290,213.36 × 505,217.07 - Step 4: Simplify right side
934,936.92x = 651,837,813,414.06 - Step 5: Solve for x
x = 651,837,813,414.06/934,936.92 - Step 6: Final answer
x = 697,199.78
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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.