Finding the Fourth Proportional to 3,918,907.36, 5,407,793.58 and 2,199,695.73
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Solution
The fourth proportional to 3,918,907.36, 5,407,793.58 and 2,199,695.73 is: 3,035,412.52
Step by Step Solution
- Step 1: Write the proportion equation
3,918,907.36 : 5,407,793.58 = 2,199,695.73 : x - Step 2: Convert to fraction form
3,918,907.36/5,407,793.58 = 2,199,695.73/x - Step 3: Cross multiply
3,918,907.36x = 5,407,793.58 × 2,199,695.73 - Step 4: Simplify right side
3,918,907.36x = 11,895,500,446,647.41 - Step 5: Solve for x
x = 11,895,500,446,647.41/3,918,907.36 - Step 6: Final answer
x = 3,035,412.52
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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.