Finding the Fourth Proportional to 3,822,678.72, 5,274,531.99 and 2,191,597.74
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Solution
The fourth proportional to 3,822,678.72, 5,274,531.99 and 2,191,597.74 is: 3,023,966.50
Step by Step Solution
- Step 1: Write the proportion equation
3,822,678.72 : 5,274,531.99 = 2,191,597.74 : x - Step 2: Convert to fraction form
3,822,678.72/5,274,531.99 = 2,191,597.74/x - Step 3: Cross multiply
3,822,678.72x = 5,274,531.99 × 2,191,597.74 - Step 4: Simplify right side
3,822,678.72x = 11,559,652,388,841.71 - Step 5: Solve for x
x = 11,559,652,388,841.71/3,822,678.72 - Step 6: Final answer
x = 3,023,966.50
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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.