Finding the Fourth Proportional to 511,847.11, 706,364.18 and 285,487.75
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Solution
The fourth proportional to 511,847.11, 706,364.18 and 285,487.75 is: 393,981.56
Step by Step Solution
- Step 1: Write the proportion equation
511,847.11 : 706,364.18 = 285,487.75 : x - Step 2: Convert to fraction form
511,847.11/706,364.18 = 285,487.75/x - Step 3: Cross multiply
511,847.11x = 706,364.18 × 285,487.75 - Step 4: Simplify right side
511,847.11x = 201,658,320,428.80 - Step 5: Solve for x
x = 201,658,320,428.80/511,847.11 - Step 6: Final answer
x = 393,981.56
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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.