Finding the Fourth Proportional to 396,106.14, 546,640.47 and 283,198.62
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Solution
The fourth proportional to 396,106.14, 546,640.47 and 283,198.62 is: 390,824.10
Step by Step Solution
- Step 1: Write the proportion equation
396,106.14 : 546,640.47 = 283,198.62 : x - Step 2: Convert to fraction form
396,106.14/546,640.47 = 283,198.62/x - Step 3: Cross multiply
396,106.14x = 546,640.47 × 283,198.62 - Step 4: Simplify right side
396,106.14x = 154,807,826,740.15 - Step 5: Solve for x
x = 154,807,826,740.15/396,106.14 - Step 6: Final answer
x = 390,824.10
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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.