Finding the Fourth Proportional to 2,021,831.75, 2,785,385.99 and 1,408,872.15
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Solution
The fourth proportional to 2,021,831.75, 2,785,385.99 and 1,408,872.15 is: 1,940,939.32
Step by Step Solution
- Step 1: Write the proportion equation
2,021,831.75 : 2,785,385.99 = 1,408,872.15 : x - Step 2: Convert to fraction form
2,021,831.75/2,785,385.99 = 1,408,872.15/x - Step 3: Cross multiply
2,021,831.75x = 2,785,385.99 × 1,408,872.15 - Step 4: Simplify right side
2,021,831.75x = 3,924,252,741,266.82 - Step 5: Solve for x
x = 3,924,252,741,266.82/2,021,831.75 - Step 6: Final answer
x = 1,940,939.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.