Finding the Fourth Proportional to 816,220.80, 1,126,403.82 and 453,659.94
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Solution
The fourth proportional to 816,220.80, 1,126,403.82 and 453,659.94 is: 626,061.34
Step by Step Solution
- Step 1: Write the proportion equation
816,220.80 : 1,126,403.82 = 453,659.94 : x - Step 2: Convert to fraction form
816,220.80/1,126,403.82 = 453,659.94/x - Step 3: Cross multiply
816,220.80x = 1,126,403.82 × 453,659.94 - Step 4: Simplify right side
816,220.80x = 511,004,289,396.97 - Step 5: Solve for x
x = 511,004,289,396.97/816,220.80 - Step 6: Final answer
x = 626,061.34
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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.