Finding the Fourth Proportional to 2,107,685.84, 2,908,626.12 and 1,202,321.36
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Solution
The fourth proportional to 2,107,685.84, 2,908,626.12 and 1,202,321.36 is: 1,659,214.69
Step by Step Solution
- Step 1: Write the proportion equation
2,107,685.84 : 2,908,626.12 = 1,202,321.36 : x - Step 2: Convert to fraction form
2,107,685.84/2,908,626.12 = 1,202,321.36/x - Step 3: Cross multiply
2,107,685.84x = 2,908,626.12 × 1,202,321.36 - Step 4: Simplify right side
2,107,685.84x = 3,497,103,312,329.92 - Step 5: Solve for x
x = 3,497,103,312,329.92/2,107,685.84 - Step 6: Final answer
x = 1,659,214.69
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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.