Finding the Fourth Proportional to 816,548.13, 1,126,772.55 and 453,949.92
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Solution
The fourth proportional to 816,548.13, 1,126,772.55 and 453,949.92 is: 626,415.38
Step by Step Solution
- Step 1: Write the proportion equation
816,548.13 : 1,126,772.55 = 453,949.92 : x - Step 2: Convert to fraction form
816,548.13/1,126,772.55 = 453,949.92/x - Step 3: Cross multiply
816,548.13x = 1,126,772.55 × 453,949.92 - Step 4: Simplify right side
816,548.13x = 511,498,308,930.70 - Step 5: Solve for x
x = 511,498,308,930.70/816,548.13 - Step 6: Final answer
x = 626,415.38
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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.