Finding the Fourth Proportional to 816,511.26, 1,126,721.70 and 453,913.05
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Solution
The fourth proportional to 816,511.26, 1,126,721.70 and 453,913.05 is: 626,364.52
Step by Step Solution
- Step 1: Write the proportion equation
816,511.26 : 1,126,721.70 = 453,913.05 : x - Step 2: Convert to fraction form
816,511.26/1,126,721.70 = 453,913.05/x - Step 3: Cross multiply
816,511.26x = 1,126,721.70 × 453,913.05 - Step 4: Simplify right side
816,511.26x = 511,433,683,348.19 - Step 5: Solve for x
x = 511,433,683,348.19/816,511.26 - Step 6: Final answer
x = 626,364.52
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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.