Finding the Fourth Proportional to 861,859.18, 1,292,788.78 and 270,883.18
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Solution
The fourth proportional to 861,859.18, 1,292,788.78 and 270,883.18 is: 406,324.77
Step by Step Solution
- Step 1: Write the proportion equation
861,859.18 : 1,292,788.78 = 270,883.18 : x - Step 2: Convert to fraction form
861,859.18/1,292,788.78 = 270,883.18/x - Step 3: Cross multiply
861,859.18x = 1,292,788.78 × 270,883.18 - Step 4: Simplify right side
861,859.18x = 350,194,735,794.72 - Step 5: Solve for x
x = 350,194,735,794.72/861,859.18 - Step 6: Final answer
x = 406,324.77
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1.5x scale
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.