Finding the Fourth Proportional to 642,816.92, 963,634.92 and 343,504.12
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Solution
The fourth proportional to 642,816.92, 963,634.92 and 343,504.12 is: 514,940.65
Step by Step Solution
- Step 1: Write the proportion equation
642,816.92 : 963,634.92 = 343,504.12 : x - Step 2: Convert to fraction form
642,816.92/963,634.92 = 343,504.12/x - Step 3: Cross multiply
642,816.92x = 963,634.92 × 343,504.12 - Step 4: Simplify right side
642,816.92x = 331,012,565,195.87 - Step 5: Solve for x
x = 331,012,565,195.87/642,816.92 - Step 6: Final answer
x = 514,940.65
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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.