Finding the Fourth Proportional to 1,142,635.12, 1,713,415.49 and 422,479.26
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Solution
The fourth proportional to 1,142,635.12, 1,713,415.49 and 422,479.26 is: 633,520.27
Step by Step Solution
- Step 1: Write the proportion equation
1,142,635.12 : 1,713,415.49 = 422,479.26 : x - Step 2: Convert to fraction form
1,142,635.12/1,713,415.49 = 422,479.26/x - Step 3: Cross multiply
1,142,635.12x = 1,713,415.49 × 422,479.26 - Step 4: Simplify right side
1,142,635.12x = 723,882,510,136.08 - Step 5: Solve for x
x = 723,882,510,136.08/1,142,635.12 - Step 6: Final answer
x = 633,520.27
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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.