Finding the Fourth Proportional to 3,934,234.84, 5,429,237.81 and 2,215,367.66
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Solution
The fourth proportional to 3,934,234.84, 5,429,237.81 and 2,215,367.66 is: 3,057,203.84
Step by Step Solution
- Step 1: Write the proportion equation
3,934,234.84 : 5,429,237.81 = 2,215,367.66 : x - Step 2: Convert to fraction form
3,934,234.84/5,429,237.81 = 2,215,367.66/x - Step 3: Cross multiply
3,934,234.84x = 5,429,237.81 × 2,215,367.66 - Step 4: Simplify right side
3,934,234.84x = 12,027,757,862,723.22 - Step 5: Solve for x
x = 12,027,757,862,723.22/3,934,234.84 - Step 6: Final answer
x = 3,057,203.84
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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.