Finding the Fourth Proportional to 2,827,998.40, 4,235,776.80 and 2,512,811.20
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Solution
The fourth proportional to 2,827,998.40, 4,235,776.80 and 2,512,811.20 is: 3,763,689.32
Step by Step Solution
- Step 1: Write the proportion equation
2,827,998.40 : 4,235,776.80 = 2,512,811.20 : x - Step 2: Convert to fraction form
2,827,998.40/4,235,776.80 = 2,512,811.20/x - Step 3: Cross multiply
2,827,998.40x = 4,235,776.80 × 2,512,811.20 - Step 4: Simplify right side
2,827,998.40x = 10,643,707,383,740.16 - Step 5: Solve for x
x = 10,643,707,383,740.16/2,827,998.40 - Step 6: Final answer
x = 3,763,689.32
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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.