Finding the Fourth Proportional to 3,861,471.05, 5,328,477.82 and 2,291,332.29
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Solution
The fourth proportional to 3,861,471.05, 5,328,477.82 and 2,291,332.29 is: 3,161,829.55
Step by Step Solution
- Step 1: Write the proportion equation
3,861,471.05 : 5,328,477.82 = 2,291,332.29 : x - Step 2: Convert to fraction form
3,861,471.05/5,328,477.82 = 2,291,332.29/x - Step 3: Cross multiply
3,861,471.05x = 5,328,477.82 × 2,291,332.29 - Step 4: Simplify right side
3,861,471.05x = 12,209,313,288,378.97 - Step 5: Solve for x
x = 12,209,313,288,378.97/3,861,471.05 - Step 6: Final answer
x = 3,161,829.55
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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.