Finding the Fourth Proportional to 2,479,879.08, 3,421,352.70 and 1,620,934.92
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Solution
The fourth proportional to 2,479,879.08, 3,421,352.70 and 1,620,934.92 is: 2,236,314.71
Step by Step Solution
- Step 1: Write the proportion equation
2,479,879.08 : 3,421,352.70 = 1,620,934.92 : x - Step 2: Convert to fraction form
2,479,879.08/3,421,352.70 = 1,620,934.92/x - Step 3: Cross multiply
2,479,879.08x = 3,421,352.70 × 1,620,934.92 - Step 4: Simplify right side
2,479,879.08x = 5,545,790,065,066.28 - Step 5: Solve for x
x = 5,545,790,065,066.28/2,479,879.08 - Step 6: Final answer
x = 2,236,314.71
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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.