Finding the Fourth Proportional to 2,812,896.21, 3,881,815.47 and 1,523,736.66
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Solution
The fourth proportional to 2,812,896.21, 3,881,815.47 and 1,523,736.66 is: 2,102,766.72
Step by Step Solution
- Step 1: Write the proportion equation
2,812,896.21 : 3,881,815.47 = 1,523,736.66 : x - Step 2: Convert to fraction form
2,812,896.21/3,881,815.47 = 1,523,736.66/x - Step 3: Cross multiply
2,812,896.21x = 3,881,815.47 × 1,523,736.66 - Step 4: Simplify right side
2,812,896.21x = 5,914,864,538,994.13 - Step 5: Solve for x
x = 5,914,864,538,994.13/2,812,896.21 - Step 6: Final answer
x = 2,102,766.72
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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.