Finding the Fourth Proportional to 2,738,839.18, 3,779,709.48 and 1,515,123.68
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Solution
The fourth proportional to 2,738,839.18, 3,779,709.48 and 1,515,123.68 is: 2,090,932.31
Step by Step Solution
- Step 1: Write the proportion equation
2,738,839.18 : 3,779,709.48 = 1,515,123.68 : x - Step 2: Convert to fraction form
2,738,839.18/3,779,709.48 = 1,515,123.68/x - Step 3: Cross multiply
2,738,839.18x = 3,779,709.48 × 1,515,123.68 - Step 4: Simplify right side
2,738,839.18x = 5,726,727,339,030.81 - Step 5: Solve for x
x = 5,726,727,339,030.81/2,738,839.18 - Step 6: Final answer
x = 2,090,932.31
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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.