Finding the Fourth Proportional to 1,987,135.32, 2,741,819.58 and 1,127,628.12
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Solution
The fourth proportional to 1,987,135.32, 2,741,819.58 and 1,127,628.12 is: 1,555,884.41
Step by Step Solution
- Step 1: Write the proportion equation
1,987,135.32 : 2,741,819.58 = 1,127,628.12 : x - Step 2: Convert to fraction form
1,987,135.32/2,741,819.58 = 1,127,628.12/x - Step 3: Cross multiply
1,987,135.32x = 2,741,819.58 × 1,127,628.12 - Step 4: Simplify right side
1,987,135.32x = 3,091,752,858,374.59 - Step 5: Solve for x
x = 3,091,752,858,374.59/1,987,135.32 - Step 6: Final answer
x = 1,555,884.41
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.