Finding the Fourth Proportional to 2,711,689.87, 3,742,121.75 and 1,488,015.87
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Solution
The fourth proportional to 2,711,689.87, 3,742,121.75 and 1,488,015.87 is: 2,053,456.26
Step by Step Solution
- Step 1: Write the proportion equation
2,711,689.87 : 3,742,121.75 = 1,488,015.87 : x - Step 2: Convert to fraction form
2,711,689.87/3,742,121.75 = 1,488,015.87/x - Step 3: Cross multiply
2,711,689.87x = 3,742,121.75 × 1,488,015.87 - Step 4: Simplify right side
2,711,689.87x = 5,568,336,551,472.17 - Step 5: Solve for x
x = 5,568,336,551,472.17/2,711,689.87 - Step 6: Final answer
x = 2,053,456.26
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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.