Finding the Fourth Proportional to 2,812,515.24, 4,218,103.80 and 1,214,203.80
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Solution
The fourth proportional to 2,812,515.24, 4,218,103.80 and 1,214,203.80 is: 1,821,016.86
Step by Step Solution
- Step 1: Write the proportion equation
2,812,515.24 : 4,218,103.80 = 1,214,203.80 : x - Step 2: Convert to fraction form
2,812,515.24/4,218,103.80 = 1,214,203.80/x - Step 3: Cross multiply
2,812,515.24x = 4,218,103.80 × 1,214,203.80 - Step 4: Simplify right side
2,812,515.24x = 5,121,637,662,754.44 - Step 5: Solve for x
x = 5,121,637,662,754.44/2,812,515.24 - Step 6: Final answer
x = 1,821,016.86
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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.