Finding the Fourth Proportional to 2,077,900.20, 3,111,219.99 and 1,078,528.68
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Solution
The fourth proportional to 2,077,900.20, 3,111,219.99 and 1,078,528.68 is: 1,614,870.62
Step by Step Solution
- Step 1: Write the proportion equation
2,077,900.20 : 3,111,219.99 = 1,078,528.68 : x - Step 2: Convert to fraction form
2,077,900.20/3,111,219.99 = 1,078,528.68/x - Step 3: Cross multiply
2,077,900.20x = 3,111,219.99 × 1,078,528.68 - Step 4: Simplify right side
2,077,900.20x = 3,355,539,989,004.31 - Step 5: Solve for x
x = 3,355,539,989,004.31/2,077,900.20 - Step 6: Final answer
x = 1,614,870.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.