Finding the Fourth Proportional to 392,765.07, 589,148.07 and 126,565.23
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Solution
The fourth proportional to 392,765.07, 589,148.07 and 126,565.23 is: 189,847.99
Step by Step Solution
- Step 1: Write the proportion equation
392,765.07 : 589,148.07 = 126,565.23 : x - Step 2: Convert to fraction form
392,765.07/589,148.07 = 126,565.23/x - Step 3: Cross multiply
392,765.07x = 589,148.07 × 126,565.23 - Step 4: Simplify right side
392,765.07x = 74,565,660,983.61 - Step 5: Solve for x
x = 74,565,660,983.61/392,765.07 - Step 6: Final answer
x = 189,847.99
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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.