Finding the Fourth Proportional to 876,113.80, 1,313,198.70 and 343,457.80
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Solution
The fourth proportional to 876,113.80, 1,313,198.70 and 343,457.80 is: 514,805.65
Step by Step Solution
- Step 1: Write the proportion equation
876,113.80 : 1,313,198.70 = 343,457.80 : x - Step 2: Convert to fraction form
876,113.80/1,313,198.70 = 343,457.80/x - Step 3: Cross multiply
876,113.80x = 1,313,198.70 × 343,457.80 - Step 4: Simplify right side
876,113.80x = 451,028,336,464.86 - Step 5: Solve for x
x = 451,028,336,464.86/876,113.80 - Step 6: Final answer
x = 514,805.65
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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.