Finding the Fourth Proportional to 3,436,324.75, 4,742,128.16 and 1,908,574.03
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Solution
The fourth proportional to 3,436,324.75, 4,742,128.16 and 1,908,574.03 is: 2,633,832.16
Step by Step Solution
- Step 1: Write the proportion equation
3,436,324.75 : 4,742,128.16 = 1,908,574.03 : x - Step 2: Convert to fraction form
3,436,324.75/4,742,128.16 = 1,908,574.03/x - Step 3: Cross multiply
3,436,324.75x = 4,742,128.16 × 1,908,574.03 - Step 4: Simplify right side
3,436,324.75x = 9,050,702,653,107.69 - Step 5: Solve for x
x = 9,050,702,653,107.69/3,436,324.75 - Step 6: Final answer
x = 2,633,832.16
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1.5x scale
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.