Finding the Fourth Proportional to 2,878,563.99, 3,969,179.84 and 2,353,636.84
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Solution
The fourth proportional to 2,878,563.99, 3,969,179.84 and 2,353,636.84 is: 3,245,370.93
Step by Step Solution
- Step 1: Write the proportion equation
2,878,563.99 : 3,969,179.84 = 2,353,636.84 : x - Step 2: Convert to fraction form
2,878,563.99/3,969,179.84 = 2,353,636.84/x - Step 3: Cross multiply
2,878,563.99x = 3,969,179.84 × 2,353,636.84 - Step 4: Simplify right side
2,878,563.99x = 9,342,007,864,395.22 - Step 5: Solve for x
x = 9,342,007,864,395.22/2,878,563.99 - Step 6: Final answer
x = 3,245,370.93
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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.