Finding the Fourth Proportional to 2,278,214.64, 3,415,634.73 and 1,379,445.12
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Solution
The fourth proportional to 2,278,214.64, 3,415,634.73 and 1,379,445.12 is: 2,068,146.07
Step by Step Solution
- Step 1: Write the proportion equation
2,278,214.64 : 3,415,634.73 = 1,379,445.12 : x - Step 2: Convert to fraction form
2,278,214.64/3,415,634.73 = 1,379,445.12/x - Step 3: Cross multiply
2,278,214.64x = 3,415,634.73 × 1,379,445.12 - Step 4: Simplify right side
2,278,214.64x = 4,711,680,660,001.02 - Step 5: Solve for x
x = 4,711,680,660,001.02/2,278,214.64 - Step 6: Final answer
x = 2,068,146.07
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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.