Finding the Fourth Proportional to 2,659,609.79, 3,989,975.21 and 862,353.17
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Solution
The fourth proportional to 2,659,609.79, 3,989,975.21 and 862,353.17 is: 1,293,711.49
Step by Step Solution
- Step 1: Write the proportion equation
2,659,609.79 : 3,989,975.21 = 862,353.17 : x - Step 2: Convert to fraction form
2,659,609.79/3,989,975.21 = 862,353.17/x - Step 3: Cross multiply
2,659,609.79x = 3,989,975.21 × 862,353.17 - Step 4: Simplify right side
2,659,609.79x = 3,440,767,746,303.27 - Step 5: Solve for x
x = 3,440,767,746,303.27/2,659,609.79 - Step 6: Final answer
x = 1,293,711.49
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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.