Finding the Fourth Proportional to 511,797.72, 706,282.08 and 285,457.80
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Solution
The fourth proportional to 511,797.72, 706,282.08 and 285,457.80 is: 393,932.45
Step by Step Solution
- Step 1: Write the proportion equation
511,797.72 : 706,282.08 = 285,457.80 : x - Step 2: Convert to fraction form
511,797.72/706,282.08 = 285,457.80/x - Step 3: Cross multiply
511,797.72x = 706,282.08 × 285,457.80 - Step 4: Simplify right side
511,797.72x = 201,613,728,736.22 - Step 5: Solve for x
x = 201,613,728,736.22/511,797.72 - Step 6: Final answer
x = 393,932.45
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1.5x scale
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.