Finding the Fourth Proportional to 3,211,278.09, 4,431,624.57 and 1,760,887.02
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Solution
The fourth proportional to 3,211,278.09, 4,431,624.57 and 1,760,887.02 is: 2,430,057.43
Step by Step Solution
- Step 1: Write the proportion equation
3,211,278.09 : 4,431,624.57 = 1,760,887.02 : x - Step 2: Convert to fraction form
3,211,278.09/4,431,624.57 = 1,760,887.02/x - Step 3: Cross multiply
3,211,278.09x = 4,431,624.57 × 1,760,887.02 - Step 4: Simplify right side
3,211,278.09x = 7,803,590,182,826.08 - Step 5: Solve for x
x = 7,803,590,182,826.08/3,211,278.09 - Step 6: Final answer
x = 2,430,057.43
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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.