Finding the Fourth Proportional to 3,250,339.97, 4,478,246.88 and 2,145,804.21
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Solution
The fourth proportional to 3,250,339.97, 4,478,246.88 and 2,145,804.21 is: 2,956,441.82
Step by Step Solution
- Step 1: Write the proportion equation
3,250,339.97 : 4,478,246.88 = 2,145,804.21 : x - Step 2: Convert to fraction form
3,250,339.97/4,478,246.88 = 2,145,804.21/x - Step 3: Cross multiply
3,250,339.97x = 4,478,246.88 × 2,145,804.21 - Step 4: Simplify right side
3,250,339.97x = 9,609,441,016,570.13 - Step 5: Solve for x
x = 9,609,441,016,570.13/3,250,339.97 - Step 6: Final answer
x = 2,956,441.82
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1.5x scale
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.