Finding the Fourth Proportional to 2,990,438.88, 4,126,823.60 and 1,632,282.72
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Solution
The fourth proportional to 2,990,438.88, 4,126,823.60 and 1,632,282.72 is: 2,252,559.95
Step by Step Solution
- Step 1: Write the proportion equation
2,990,438.88 : 4,126,823.60 = 1,632,282.72 : x - Step 2: Convert to fraction form
2,990,438.88/4,126,823.60 = 1,632,282.72/x - Step 3: Cross multiply
2,990,438.88x = 4,126,823.60 × 1,632,282.72 - Step 4: Simplify right side
2,990,438.88x = 6,736,142,850,768.19 - Step 5: Solve for x
x = 6,736,142,850,768.19/2,990,438.88 - Step 6: Final answer
x = 2,252,559.95
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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.