Finding the Fourth Proportional to 816,509.70, 1,126,789.38 and 448,993.26
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Solution
The fourth proportional to 816,509.70, 1,126,789.38 and 448,993.26 is: 619,613.99
Step by Step Solution
- Step 1: Write the proportion equation
816,509.70 : 1,126,789.38 = 448,993.26 : x - Step 2: Convert to fraction form
816,509.70/1,126,789.38 = 448,993.26/x - Step 3: Cross multiply
816,509.70x = 1,126,789.38 × 448,993.26 - Step 4: Simplify right side
816,509.70x = 505,920,837,059.58 - Step 5: Solve for x
x = 505,920,837,059.58/816,509.70 - Step 6: Final answer
x = 619,613.99
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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.