Finding the Fourth Proportional to 2,987,074.85, 4,120,958.99 and 1,728,934.66
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Solution
The fourth proportional to 2,987,074.85, 4,120,958.99 and 1,728,934.66 is: 2,385,232.76
Step by Step Solution
- Step 1: Write the proportion equation
2,987,074.85 : 4,120,958.99 = 1,728,934.66 : x - Step 2: Convert to fraction form
2,987,074.85/4,120,958.99 = 1,728,934.66/x - Step 3: Cross multiply
2,987,074.85x = 4,120,958.99 × 1,728,934.66 - Step 4: Simplify right side
2,987,074.85x = 7,124,868,801,000.13 - Step 5: Solve for x
x = 7,124,868,801,000.13/2,987,074.85 - Step 6: Final answer
x = 2,385,232.76
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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.