Finding the Fourth Proportional to 822,885.12, 1,133,058.11 and 720,336.69
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Solution
The fourth proportional to 822,885.12, 1,133,058.11 and 720,336.69 is: 991,855.73
Step by Step Solution
- Step 1: Write the proportion equation
822,885.12 : 1,133,058.11 = 720,336.69 : x - Step 2: Convert to fraction form
822,885.12/1,133,058.11 = 720,336.69/x - Step 3: Cross multiply
822,885.12x = 1,133,058.11 × 720,336.69 - Step 4: Simplify right side
822,885.12x = 816,183,324,933.37 - Step 5: Solve for x
x = 816,183,324,933.37/822,885.12 - Step 6: Final answer
x = 991,855.73
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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.