Finding the Fourth Proportional to 2,399,721.12, 3,311,616.96 and 1,311,975.36
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Solution
The fourth proportional to 2,399,721.12, 3,311,616.96 and 1,311,975.36 is: 1,810,526.99
Step by Step Solution
- Step 1: Write the proportion equation
2,399,721.12 : 3,311,616.96 = 1,311,975.36 : x - Step 2: Convert to fraction form
2,399,721.12/3,311,616.96 = 1,311,975.36/x - Step 3: Cross multiply
2,399,721.12x = 3,311,616.96 × 1,311,975.36 - Step 4: Simplify right side
2,399,721.12x = 4,344,759,853,278.11 - Step 5: Solve for x
x = 4,344,759,853,278.11/2,399,721.12 - Step 6: Final answer
x = 1,810,526.99
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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.