Finding the Fourth Proportional to 1,392,302.69, 2,088,455.86 and 381,433.53
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Solution
The fourth proportional to 1,392,302.69, 2,088,455.86 and 381,433.53 is: 572,150.79
Step by Step Solution
- Step 1: Write the proportion equation
1,392,302.69 : 2,088,455.86 = 381,433.53 : x - Step 2: Convert to fraction form
1,392,302.69/2,088,455.86 = 381,433.53/x - Step 3: Cross multiply
1,392,302.69x = 2,088,455.86 × 381,433.53 - Step 4: Simplify right side
1,392,302.69x = 796,607,083,574.07 - Step 5: Solve for x
x = 796,607,083,574.07/1,392,302.69 - Step 6: Final answer
x = 572,150.79
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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.