Finding the Fourth Proportional to 1,992,804.96, 2,750,137.20 and 1,087,436.64
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Solution
The fourth proportional to 1,992,804.96, 2,750,137.20 and 1,087,436.64 is: 1,500,698.77
Step by Step Solution
- Step 1: Write the proportion equation
1,992,804.96 : 2,750,137.20 = 1,087,436.64 : x - Step 2: Convert to fraction form
1,992,804.96/2,750,137.20 = 1,087,436.64/x - Step 3: Cross multiply
1,992,804.96x = 2,750,137.20 × 1,087,436.64 - Step 4: Simplify right side
1,992,804.96x = 2,990,599,956,307.01 - Step 5: Solve for x
x = 2,990,599,956,307.01/1,992,804.96 - Step 6: Final answer
x = 1,500,698.77
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.