Finding the Fourth Proportional to 2,158,579.24, 2,979,847.30 and 1,252,986.92
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Solution
The fourth proportional to 2,158,579.24, 2,979,847.30 and 1,252,986.92 is: 1,729,707.03
Step by Step Solution
- Step 1: Write the proportion equation
2,158,579.24 : 2,979,847.30 = 1,252,986.92 : x - Step 2: Convert to fraction form
2,158,579.24/2,979,847.30 = 1,252,986.92/x - Step 3: Cross multiply
2,158,579.24x = 2,979,847.30 × 1,252,986.92 - Step 4: Simplify right side
2,158,579.24x = 3,733,709,690,497.32 - Step 5: Solve for x
x = 3,733,709,690,497.32/2,158,579.24 - Step 6: Final answer
x = 1,729,707.03
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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.