Finding the Fourth Proportional to 2,565,340.40, 3,845,472.60 and 1,215,129.80
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Solution
The fourth proportional to 2,565,340.40, 3,845,472.60 and 1,215,129.80 is: 1,821,492.52
Step by Step Solution
- Step 1: Write the proportion equation
2,565,340.40 : 3,845,472.60 = 1,215,129.80 : x - Step 2: Convert to fraction form
2,565,340.40/3,845,472.60 = 1,215,129.80/x - Step 3: Cross multiply
2,565,340.40x = 3,845,472.60 × 1,215,129.80 - Step 4: Simplify right side
2,565,340.40x = 4,672,748,351,343.48 - Step 5: Solve for x
x = 4,672,748,351,343.48/2,565,340.40 - Step 6: Final answer
x = 1,821,492.52
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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.