Finding the Fourth Proportional to 891,287.75, 1,229,979.12 and 509,313.62
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Solution
The fourth proportional to 891,287.75, 1,229,979.12 and 509,313.62 is: 702,853.95
Step by Step Solution
- Step 1: Write the proportion equation
891,287.75 : 1,229,979.12 = 509,313.62 : x - Step 2: Convert to fraction form
891,287.75/1,229,979.12 = 509,313.62/x - Step 3: Cross multiply
891,287.75x = 1,229,979.12 × 509,313.62 - Step 4: Simplify right side
891,287.75x = 626,445,118,131.62 - Step 5: Solve for x
x = 626,445,118,131.62/891,287.75 - Step 6: Final answer
x = 702,853.95
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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.