Finding the Fourth Proportional to 1,207.13, 1,809.68 and 622.08
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Solution
The fourth proportional to 1,207.13, 1,809.68 and 622.08 is: 932.60
Step by Step Solution
- Step 1: Write the proportion equation
1,207.13 : 1,809.68 = 622.08 : x - Step 2: Convert to fraction form
1,207.13/1,809.68 = 622.08/x - Step 3: Cross multiply
1,207.13x = 1,809.68 × 622.08 - Step 4: Simplify right side
1,207.13x = 1,125,762.62 - Step 5: Solve for x
x = 1,125,762.62/1,207.13 - Step 6: Final answer
x = 932.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.