Finding the Fourth Proportional to 2,278,210.14, 3,415,627.98 and 1,379,440.62
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Solution
The fourth proportional to 2,278,210.14, 3,415,627.98 and 1,379,440.62 is: 2,068,139.32
Step by Step Solution
- Step 1: Write the proportion equation
2,278,210.14 : 3,415,627.98 = 1,379,440.62 : x - Step 2: Convert to fraction form
2,278,210.14/3,415,627.98 = 1,379,440.62/x - Step 3: Cross multiply
2,278,210.14x = 3,415,627.98 × 1,379,440.62 - Step 4: Simplify right side
2,278,210.14x = 4,711,655,978,420.55 - Step 5: Solve for x
x = 4,711,655,978,420.55/2,278,210.14 - Step 6: Final answer
x = 2,068,139.32
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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.