Finding the Fourth Proportional to 1,392,359.76, 2,088,541.26 and 381,490.29
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Solution
The fourth proportional to 1,392,359.76, 2,088,541.26 and 381,490.29 is: 572,235.88
Step by Step Solution
- Step 1: Write the proportion equation
1,392,359.76 : 2,088,541.26 = 381,490.29 : x - Step 2: Convert to fraction form
1,392,359.76/2,088,541.26 = 381,490.29/x - Step 3: Cross multiply
1,392,359.76x = 2,088,541.26 × 381,490.29 - Step 4: Simplify right side
1,392,359.76x = 796,758,210,954.37 - Step 5: Solve for x
x = 796,758,210,954.37/1,392,359.76 - Step 6: Final answer
x = 572,235.88
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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.