Finding the Fourth Proportional to 814,067.80, 1,221,160.02 and 215,022.99
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Solution
The fourth proportional to 814,067.80, 1,221,160.02 and 215,022.99 is: 322,549.89
Step by Step Solution
- Step 1: Write the proportion equation
814,067.80 : 1,221,160.02 = 215,022.99 : x - Step 2: Convert to fraction form
814,067.80/1,221,160.02 = 215,022.99/x - Step 3: Cross multiply
814,067.80x = 1,221,160.02 × 215,022.99 - Step 4: Simplify right side
814,067.80x = 262,577,478,768.86 - Step 5: Solve for x
x = 262,577,478,768.86/814,067.80 - Step 6: Final answer
x = 322,549.89
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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.