Finding the Fourth Proportional to 1,392,269.99, 2,088,406.63 and 381,400.65
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Solution
The fourth proportional to 1,392,269.99, 2,088,406.63 and 381,400.65 is: 572,101.42
Step by Step Solution
- Step 1: Write the proportion equation
1,392,269.99 : 2,088,406.63 = 381,400.65 : x - Step 2: Convert to fraction form
1,392,269.99/2,088,406.63 = 381,400.65/x - Step 3: Cross multiply
1,392,269.99x = 2,088,406.63 × 381,400.65 - Step 4: Simplify right side
1,392,269.99x = 796,519,636,646.16 - Step 5: Solve for x
x = 796,519,636,646.16/1,392,269.99 - Step 6: Final answer
x = 572,101.42
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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.