Finding the Fourth Proportional to 1,378,007.85, 1,901,672.95 and 757,837.53
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Solution
The fourth proportional to 1,378,007.85, 1,901,672.95 and 757,837.53 is: 1,045,827.95
Step by Step Solution
- Step 1: Write the proportion equation
1,378,007.85 : 1,901,672.95 = 757,837.53 : x - Step 2: Convert to fraction form
1,378,007.85/1,901,672.95 = 757,837.53/x - Step 3: Cross multiply
1,378,007.85x = 1,901,672.95 × 757,837.53 - Step 4: Simplify right side
1,378,007.85x = 1,441,159,131,295.81 - Step 5: Solve for x
x = 1,441,159,131,295.81/1,378,007.85 - Step 6: Final answer
x = 1,045,827.95
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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.