Finding the Fourth Proportional to 864,124.12, 1,192,515.78 and 482,142.70
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Solution
The fourth proportional to 864,124.12, 1,192,515.78 and 482,142.70 is: 665,370.59
Step by Step Solution
- Step 1: Write the proportion equation
864,124.12 : 1,192,515.78 = 482,142.70 : x - Step 2: Convert to fraction form
864,124.12/1,192,515.78 = 482,142.70/x - Step 3: Cross multiply
864,124.12x = 1,192,515.78 × 482,142.70 - Step 4: Simplify right side
864,124.12x = 574,962,777,961.81 - Step 5: Solve for x
x = 574,962,777,961.81/864,124.12 - Step 6: Final answer
x = 665,370.59
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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.