Finding the Fourth Proportional to 816,515.87, 1,126,728.07 and 453,917.65
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Solution
The fourth proportional to 816,515.87, 1,126,728.07 and 453,917.65 is: 626,370.87
Step by Step Solution
- Step 1: Write the proportion equation
816,515.87 : 1,126,728.07 = 453,917.65 : x - Step 2: Convert to fraction form
816,515.87/1,126,728.07 = 453,917.65/x - Step 3: Cross multiply
816,515.87x = 1,126,728.07 × 453,917.65 - Step 4: Simplify right side
816,515.87x = 511,441,757,723.44 - Step 5: Solve for x
x = 511,441,757,723.44/816,515.87 - Step 6: Final answer
x = 626,370.87
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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.