Finding the Fourth Proportional to 2,818,679.45, 3,889,787.97 and 1,529,519.80
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Solution
The fourth proportional to 2,818,679.45, 3,889,787.97 and 1,529,519.80 is: 2,110,742.93
Step by Step Solution
- Step 1: Write the proportion equation
2,818,679.45 : 3,889,787.97 = 1,529,519.80 : x - Step 2: Convert to fraction form
2,818,679.45/3,889,787.97 = 1,529,519.80/x - Step 3: Cross multiply
2,818,679.45x = 3,889,787.97 × 1,529,519.80 - Step 4: Simplify right side
2,818,679.45x = 5,949,507,717,916.81 - Step 5: Solve for x
x = 5,949,507,717,916.81/2,818,679.45 - Step 6: Final answer
x = 2,110,742.93
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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.