Finding the Fourth Proportional to 2,006,990.31, 2,769,245.95 and 1,221,530.11
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Solution
The fourth proportional to 2,006,990.31, 2,769,245.95 and 1,221,530.11 is: 1,685,467.69
Step by Step Solution
- Step 1: Write the proportion equation
2,006,990.31 : 2,769,245.95 = 1,221,530.11 : x - Step 2: Convert to fraction form
2,006,990.31/2,769,245.95 = 1,221,530.11/x - Step 3: Cross multiply
2,006,990.31x = 2,769,245.95 × 1,221,530.11 - Step 4: Simplify right side
2,006,990.31x = 3,382,717,316,293.30 - Step 5: Solve for x
x = 3,382,717,316,293.30/2,006,990.31 - Step 6: Final answer
x = 1,685,467.69
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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.