Finding the Fourth Proportional to 1,122,422.24, 1,545,793.80 and 1,050,380.84
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Solution
The fourth proportional to 1,122,422.24, 1,545,793.80 and 1,050,380.84 is: 1,446,578.78
Step by Step Solution
- Step 1: Write the proportion equation
1,122,422.24 : 1,545,793.80 = 1,050,380.84 : x - Step 2: Convert to fraction form
1,122,422.24/1,545,793.80 = 1,050,380.84/x - Step 3: Cross multiply
1,122,422.24x = 1,545,793.80 × 1,050,380.84 - Step 4: Simplify right side
1,122,422.24x = 1,623,672,190,110.79 - Step 5: Solve for x
x = 1,623,672,190,110.79/1,122,422.24 - Step 6: Final answer
x = 1,446,578.78
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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.