Finding the Fourth Proportional to 1,392,309, 2,088,465.34 and 381,439.84
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Solution
The fourth proportional to 1,392,309, 2,088,465.34 and 381,439.84 is: 572,160.26
Step by Step Solution
- Step 1: Write the proportion equation
1,392,309 : 2,088,465.34 = 381,439.84 : x - Step 2: Convert to fraction form
1,392,309/2,088,465.34 = 381,439.84/x - Step 3: Cross multiply
1,392,309x = 2,088,465.34 × 381,439.84 - Step 4: Simplify right side
1,392,309x = 796,623,885,135.15 - Step 5: Solve for x
x = 796,623,885,135.15/1,392,309 - Step 6: Final answer
x = 572,160.26
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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.