Finding the Fourth Proportional to 3,888,438.72, 5,365,186.62 and 2,255,900.62
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Solution
The fourth proportional to 3,888,438.72, 5,365,186.62 and 2,255,900.62 is: 3,112,644.61
Step by Step Solution
- Step 1: Write the proportion equation
3,888,438.72 : 5,365,186.62 = 2,255,900.62 : x - Step 2: Convert to fraction form
3,888,438.72/5,365,186.62 = 2,255,900.62/x - Step 3: Cross multiply
3,888,438.72x = 5,365,186.62 × 2,255,900.62 - Step 4: Simplify right side
3,888,438.72x = 12,103,327,822,473.71 - Step 5: Solve for x
x = 12,103,327,822,473.71/3,888,438.72 - Step 6: Final answer
x = 3,112,644.61
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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.