Finding the Fourth Proportional to 861,728.58, 1,292,786.69 and 262,750.29
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Solution
The fourth proportional to 861,728.58, 1,292,786.69 and 262,750.29 is: 394,184.53
Step by Step Solution
- Step 1: Write the proportion equation
861,728.58 : 1,292,786.69 = 262,750.29 : x - Step 2: Convert to fraction form
861,728.58/1,292,786.69 = 262,750.29/x - Step 3: Cross multiply
861,728.58x = 1,292,786.69 × 262,750.29 - Step 4: Simplify right side
861,728.58x = 339,680,077,705.64 - Step 5: Solve for x
x = 339,680,077,705.64/861,728.58 - Step 6: Final answer
x = 394,184.53
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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.