Finding the Fourth Proportional to 2,857,079.05, 3,942,946.25 and 1,888,529.65
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Solution
The fourth proportional to 2,857,079.05, 3,942,946.25 and 1,888,529.65 is: 2,606,288.02
Step by Step Solution
- Step 1: Write the proportion equation
2,857,079.05 : 3,942,946.25 = 1,888,529.65 : x - Step 2: Convert to fraction form
2,857,079.05/3,942,946.25 = 1,888,529.65/x - Step 3: Cross multiply
2,857,079.05x = 3,942,946.25 × 1,888,529.65 - Step 4: Simplify right side
2,857,079.05x = 7,446,370,889,263.28 - Step 5: Solve for x
x = 7,446,370,889,263.28/2,857,079.05 - Step 6: Final answer
x = 2,606,288.02
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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.