Finding the Fourth Proportional to 896,091.70, 1,344,137.55 and 398,427.70
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Solution
The fourth proportional to 896,091.70, 1,344,137.55 and 398,427.70 is: 597,641.55
Step by Step Solution
- Step 1: Write the proportion equation
896,091.70 : 1,344,137.55 = 398,427.70 : x - Step 2: Convert to fraction form
896,091.70/1,344,137.55 = 398,427.70/x - Step 3: Cross multiply
896,091.70x = 1,344,137.55 × 398,427.70 - Step 4: Simplify right side
896,091.70x = 535,541,632,530.14 - Step 5: Solve for x
x = 535,541,632,530.14/896,091.70 - Step 6: Final answer
x = 597,641.55
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1.5x scale
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.