Finding the Fourth Proportional to 3,828,449.70, 5,742,674.55 and 1,555,063.20
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Solution
The fourth proportional to 3,828,449.70, 5,742,674.55 and 1,555,063.20 is: 2,332,594.80
Step by Step Solution
- Step 1: Write the proportion equation
3,828,449.70 : 5,742,674.55 = 1,555,063.20 : x - Step 2: Convert to fraction form
3,828,449.70/5,742,674.55 = 1,555,063.20/x - Step 3: Cross multiply
3,828,449.70x = 5,742,674.55 × 1,555,063.20 - Step 4: Simplify right side
3,828,449.70x = 8,930,221,862,281.56 - Step 5: Solve for x
x = 8,930,221,862,281.56/3,828,449.70 - Step 6: Final answer
x = 2,332,594.80
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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.