Finding the Fourth Proportional to 3,891,397.15, 5,370,623.43 and 2,259,479.62
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Solution
The fourth proportional to 3,891,397.15, 5,370,623.43 and 2,259,479.62 is: 3,118,369.50
Step by Step Solution
- Step 1: Write the proportion equation
3,891,397.15 : 5,370,623.43 = 2,259,479.62 : x - Step 2: Convert to fraction form
3,891,397.15/5,370,623.43 = 2,259,479.62/x - Step 3: Cross multiply
3,891,397.15x = 5,370,623.43 × 2,259,479.62 - Step 4: Simplify right side
3,891,397.15x = 12,134,814,186,779.50 - Step 5: Solve for x
x = 12,134,814,186,779.50/3,891,397.15 - Step 6: Final answer
x = 3,118,369.50
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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.