Finding the Fourth Proportional to 816,487.25, 1,126,790.84 and 453,917.17
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Solution
The fourth proportional to 816,487.25, 1,126,790.84 and 453,917.17 is: 626,427.06
Step by Step Solution
- Step 1: Write the proportion equation
816,487.25 : 1,126,790.84 = 453,917.17 : x - Step 2: Convert to fraction form
816,487.25/1,126,790.84 = 453,917.17/x - Step 3: Cross multiply
816,487.25x = 1,126,790.84 × 453,917.17 - Step 4: Simplify right side
816,487.25x = 511,469,709,274.72 - Step 5: Solve for x
x = 511,469,709,274.72/816,487.25 - Step 6: Final answer
x = 626,427.06
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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.