Finding the Fourth Proportional to 768,439.92, 1,152,831.18 and 236,014.68
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Solution
The fourth proportional to 768,439.92, 1,152,831.18 and 236,014.68 is: 354,074.63
Step by Step Solution
- Step 1: Write the proportion equation
768,439.92 : 1,152,831.18 = 236,014.68 : x - Step 2: Convert to fraction form
768,439.92/1,152,831.18 = 236,014.68/x - Step 3: Cross multiply
768,439.92x = 1,152,831.18 × 236,014.68 - Step 4: Simplify right side
768,439.92x = 272,085,082,041.72 - Step 5: Solve for x
x = 272,085,082,041.72/768,439.92 - Step 6: Final answer
x = 354,074.63
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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.