Finding the Fourth Proportional to 2,133,916.20, 3,199,779.90 and 637,813.80
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Solution
The fourth proportional to 2,133,916.20, 3,199,779.90 and 637,813.80 is: 956,393.59
Step by Step Solution
- Step 1: Write the proportion equation
2,133,916.20 : 3,199,779.90 = 637,813.80 : x - Step 2: Convert to fraction form
2,133,916.20/3,199,779.90 = 637,813.80/x - Step 3: Cross multiply
2,133,916.20x = 3,199,779.90 × 637,813.80 - Step 4: Simplify right side
2,133,916.20x = 2,040,863,777,182.62 - Step 5: Solve for x
x = 2,040,863,777,182.62/2,133,916.20 - Step 6: Final answer
x = 956,393.59
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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.