Finding the Fourth Proportional to 1,315,672.40, 1,974,286.20 and 959,790.80
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Solution
The fourth proportional to 1,315,672.40, 1,974,286.20 and 959,790.80 is: 1,440,253.46
Step by Step Solution
- Step 1: Write the proportion equation
1,315,672.40 : 1,974,286.20 = 959,790.80 : x - Step 2: Convert to fraction form
1,315,672.40/1,974,286.20 = 959,790.80/x - Step 3: Cross multiply
1,315,672.40x = 1,974,286.20 × 959,790.80 - Step 4: Simplify right side
1,315,672.40x = 1,894,901,731,326.96 - Step 5: Solve for x
x = 1,894,901,731,326.96/1,315,672.40 - Step 6: Final answer
x = 1,440,253.46
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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.