Finding the Fourth Proportional to 681,285.98, 1,021,928.70 and 361,371.62
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Solution
The fourth proportional to 681,285.98, 1,021,928.70 and 361,371.62 is: 542,057.29
Step by Step Solution
- Step 1: Write the proportion equation
681,285.98 : 1,021,928.70 = 361,371.62 : x - Step 2: Convert to fraction form
681,285.98/1,021,928.70 = 361,371.62/x - Step 3: Cross multiply
681,285.98x = 1,021,928.70 × 361,371.62 - Step 4: Simplify right side
681,285.98x = 369,296,029,843.49 - Step 5: Solve for x
x = 369,296,029,843.49/681,285.98 - Step 6: Final answer
x = 542,057.29
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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.