Finding the Fourth Proportional to 822,957.26, 1,133,157.57 and 720,408.83
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Solution
The fourth proportional to 822,957.26, 1,133,157.57 and 720,408.83 is: 991,955.18
Step by Step Solution
- Step 1: Write the proportion equation
822,957.26 : 1,133,157.57 = 720,408.83 : x - Step 2: Convert to fraction form
822,957.26/1,133,157.57 = 720,408.83/x - Step 3: Cross multiply
822,957.26x = 1,133,157.57 × 720,408.83 - Step 4: Simplify right side
822,957.26x = 816,336,713,543.56 - Step 5: Solve for x
x = 816,336,713,543.56/822,957.26 - Step 6: Final answer
x = 991,955.18
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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.