Finding the Fourth Proportional to 3,738,220.20, 5,609,954.70 and 1,609,831.80
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Solution
The fourth proportional to 3,738,220.20, 5,609,954.70 and 1,609,831.80 is: 2,415,877.87
Step by Step Solution
- Step 1: Write the proportion equation
3,738,220.20 : 5,609,954.70 = 1,609,831.80 : x - Step 2: Convert to fraction form
3,738,220.20/5,609,954.70 = 1,609,831.80/x - Step 3: Cross multiply
3,738,220.20x = 5,609,954.70 × 1,609,831.80 - Step 4: Simplify right side
3,738,220.20x = 9,031,083,472,619.46 - Step 5: Solve for x
x = 9,031,083,472,619.46/3,738,220.20 - Step 6: Final answer
x = 2,415,877.87
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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.