Finding the Fourth Proportional to 2,157,583.43, 3,235,814.71 and 640,909.87
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Solution
The fourth proportional to 2,157,583.43, 3,235,814.71 and 640,909.87 is: 961,198.33
Step by Step Solution
- Step 1: Write the proportion equation
2,157,583.43 : 3,235,814.71 = 640,909.87 : x - Step 2: Convert to fraction form
2,157,583.43/3,235,814.71 = 640,909.87/x - Step 3: Cross multiply
2,157,583.43x = 3,235,814.71 × 640,909.87 - Step 4: Simplify right side
2,157,583.43x = 2,073,865,585,130.19 - Step 5: Solve for x
x = 2,073,865,585,130.19/2,157,583.43 - Step 6: Final answer
x = 961,198.33
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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.