Finding the Fourth Proportional to 486,103.12, 670,963.11 and 282,199.84
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Solution
The fourth proportional to 486,103.12, 670,963.11 and 282,199.84 is: 389,517.52
Step by Step Solution
- Step 1: Write the proportion equation
486,103.12 : 670,963.11 = 282,199.84 : x - Step 2: Convert to fraction form
486,103.12/670,963.11 = 282,199.84/x - Step 3: Cross multiply
486,103.12x = 670,963.11 × 282,199.84 - Step 4: Simplify right side
486,103.12x = 189,345,682,287.90 - Step 5: Solve for x
x = 189,345,682,287.90/486,103.12 - Step 6: Final answer
x = 389,517.52
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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.