Finding the Fourth Proportional to 1,392,864.44, 2,088,243.81 and 913,212.92
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Solution
The fourth proportional to 1,392,864.44, 2,088,243.81 and 913,212.92 is: 1,369,129.09
Step by Step Solution
- Step 1: Write the proportion equation
1,392,864.44 : 2,088,243.81 = 913,212.92 : x - Step 2: Convert to fraction form
1,392,864.44/2,088,243.81 = 913,212.92/x - Step 3: Cross multiply
1,392,864.44x = 2,088,243.81 × 913,212.92 - Step 4: Simplify right side
1,392,864.44x = 1,907,011,216,960.81 - Step 5: Solve for x
x = 1,907,011,216,960.81/1,392,864.44 - Step 6: Final answer
x = 1,369,129.09
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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.