Finding the Fourth Proportional to 1,392,308, 2,088,463.84 and 381,438.84
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Solution
The fourth proportional to 1,392,308, 2,088,463.84 and 381,438.84 is: 572,158.76
Step by Step Solution
- Step 1: Write the proportion equation
1,392,308 : 2,088,463.84 = 381,438.84 : x - Step 2: Convert to fraction form
1,392,308/2,088,463.84 = 381,438.84/x - Step 3: Cross multiply
1,392,308x = 2,088,463.84 × 381,438.84 - Step 4: Simplify right side
1,392,308x = 796,621,224,511.55 - Step 5: Solve for x
x = 796,621,224,511.55/1,392,308 - Step 6: Final answer
x = 572,158.76
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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.