Finding the Fourth Proportional to 1,918,508.74, 2,877,087.54 and 638,768.68
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Solution
The fourth proportional to 1,918,508.74, 2,877,087.54 and 638,768.68 is: 957,928.09
Step by Step Solution
- Step 1: Write the proportion equation
1,918,508.74 : 2,877,087.54 = 638,768.68 : x - Step 2: Convert to fraction form
1,918,508.74/2,877,087.54 = 638,768.68/x - Step 3: Cross multiply
1,918,508.74x = 2,877,087.54 × 638,768.68 - Step 4: Simplify right side
1,918,508.74x = 1,837,793,410,170.25 - Step 5: Solve for x
x = 1,837,793,410,170.25/1,918,508.74 - Step 6: Final answer
x = 957,928.09
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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.