Finding the Fourth Proportional to 792,752.81, 1,189,310.86 and 343,549.09
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Solution
The fourth proportional to 792,752.81, 1,189,310.86 and 343,549.09 is: 515,402.35
Step by Step Solution
- Step 1: Write the proportion equation
792,752.81 : 1,189,310.86 = 343,549.09 : x - Step 2: Convert to fraction form
792,752.81/1,189,310.86 = 343,549.09/x - Step 3: Cross multiply
792,752.81x = 1,189,310.86 × 343,549.09 - Step 4: Simplify right side
792,752.81x = 408,586,663,680.12 - Step 5: Solve for x
x = 408,586,663,680.12/792,752.81 - Step 6: Final answer
x = 515,402.35
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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.