Finding the Fourth Proportional to 812,891.04, 1,121,789.44 and 450,338.44
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Solution
The fourth proportional to 812,891.04, 1,121,789.44 and 450,338.44 is: 621,466.94
Step by Step Solution
- Step 1: Write the proportion equation
812,891.04 : 1,121,789.44 = 450,338.44 : x - Step 2: Convert to fraction form
812,891.04/1,121,789.44 = 450,338.44/x - Step 3: Cross multiply
812,891.04x = 1,121,789.44 × 450,338.44 - Step 4: Simplify right side
812,891.04x = 505,184,906,418.07 - Step 5: Solve for x
x = 505,184,906,418.07/812,891.04 - Step 6: Final answer
x = 621,466.94
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1.5x scale
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.