Finding the Fourth Proportional to 394,722.24, 592,088.76 and 128,484.06
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Solution
The fourth proportional to 394,722.24, 592,088.76 and 128,484.06 is: 192,727.85
Step by Step Solution
- Step 1: Write the proportion equation
394,722.24 : 592,088.76 = 128,484.06 : x - Step 2: Convert to fraction form
394,722.24/592,088.76 = 128,484.06/x - Step 3: Cross multiply
394,722.24x = 592,088.76 × 128,484.06 - Step 4: Simplify right side
394,722.24x = 76,073,967,765.17 - Step 5: Solve for x
x = 76,073,967,765.17/394,722.24 - Step 6: Final answer
x = 192,727.85
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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.