Finding the Fourth Proportional to 816,519.28, 1,126,795.08 and 453,976.60
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Solution
The fourth proportional to 816,519.28, 1,126,795.08 and 453,976.60 is: 626,486.86
Step by Step Solution
- Step 1: Write the proportion equation
816,519.28 : 1,126,795.08 = 453,976.60 : x - Step 2: Convert to fraction form
816,519.28/1,126,795.08 = 453,976.60/x - Step 3: Cross multiply
816,519.28x = 1,126,795.08 × 453,976.60 - Step 4: Simplify right side
816,519.28x = 511,538,599,315.13 - Step 5: Solve for x
x = 511,538,599,315.13/816,519.28 - Step 6: Final answer
x = 626,486.86
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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.