Finding the Fourth Proportional to 2,612,938.19, 3,919,405.84 and 815,975.67
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Solution
The fourth proportional to 2,612,938.19, 3,919,405.84 and 815,975.67 is: 1,223,963.05
Step by Step Solution
- Step 1: Write the proportion equation
2,612,938.19 : 3,919,405.84 = 815,975.67 : x - Step 2: Convert to fraction form
2,612,938.19/3,919,405.84 = 815,975.67/x - Step 3: Cross multiply
2,612,938.19x = 3,919,405.84 × 815,975.67 - Step 4: Simplify right side
2,612,938.19x = 3,198,139,804,255.97 - Step 5: Solve for x
x = 3,198,139,804,255.97/2,612,938.19 - Step 6: Final answer
x = 1,223,963.05
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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.