Finding the Fourth Proportional to 861,831.18, 1,293,337.26 and 300,865.68
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Solution
The fourth proportional to 861,831.18, 1,293,337.26 and 300,865.68 is: 451,504.66
Step by Step Solution
- Step 1: Write the proportion equation
861,831.18 : 1,293,337.26 = 300,865.68 : x - Step 2: Convert to fraction form
861,831.18/1,293,337.26 = 300,865.68/x - Step 3: Cross multiply
861,831.18x = 1,293,337.26 × 300,865.68 - Step 4: Simplify right side
861,831.18x = 389,120,794,199.24 - Step 5: Solve for x
x = 389,120,794,199.24/861,831.18 - Step 6: Final answer
x = 451,504.66
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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.