Finding the Fourth Proportional to 2,153,121.82, 3,230,314.34 and 636,844.75
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Solution
The fourth proportional to 2,153,121.82, 3,230,314.34 and 636,844.75 is: 955,453.94
Step by Step Solution
- Step 1: Write the proportion equation
2,153,121.82 : 3,230,314.34 = 636,844.75 : x - Step 2: Convert to fraction form
2,153,121.82/3,230,314.34 = 636,844.75/x - Step 3: Cross multiply
2,153,121.82x = 3,230,314.34 × 636,844.75 - Step 4: Simplify right side
2,153,121.82x = 2,057,208,728,278.72 - Step 5: Solve for x
x = 2,057,208,728,278.72/2,153,121.82 - Step 6: Final answer
x = 955,453.94
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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.