Finding the Fourth Proportional to 2,311,813.77, 3,190,224.46 and 1,279,365.09
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Solution
The fourth proportional to 2,311,813.77, 3,190,224.46 and 1,279,365.09 is: 1,765,480.36
Step by Step Solution
- Step 1: Write the proportion equation
2,311,813.77 : 3,190,224.46 = 1,279,365.09 : x - Step 2: Convert to fraction form
2,311,813.77/3,190,224.46 = 1,279,365.09/x - Step 3: Cross multiply
2,311,813.77x = 3,190,224.46 × 1,279,365.09 - Step 4: Simplify right side
2,311,813.77x = 4,081,461,803,195.88 - Step 5: Solve for x
x = 4,081,461,803,195.88/2,311,813.77 - Step 6: Final answer
x = 1,765,480.36
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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.