Finding the Fourth Proportional to 511,301.75, 705,598.62 and 281,854.09
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Solution
The fourth proportional to 511,301.75, 705,598.62 and 281,854.09 is: 388,959.87
Step by Step Solution
- Step 1: Write the proportion equation
511,301.75 : 705,598.62 = 281,854.09 : x - Step 2: Convert to fraction form
511,301.75/705,598.62 = 281,854.09/x - Step 3: Cross multiply
511,301.75x = 705,598.62 × 281,854.09 - Step 4: Simplify right side
511,301.75x = 198,875,859,744.44 - Step 5: Solve for x
x = 198,875,859,744.44/511,301.75 - Step 6: Final answer
x = 388,959.87
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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.