Finding the Fourth Proportional to 1,379,539.68, 1,903,736.57 and 863,578.14
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Solution
The fourth proportional to 1,379,539.68, 1,903,736.57 and 863,578.14 is: 1,191,720.18
Step by Step Solution
- Step 1: Write the proportion equation
1,379,539.68 : 1,903,736.57 = 863,578.14 : x - Step 2: Convert to fraction form
1,379,539.68/1,903,736.57 = 863,578.14/x - Step 3: Cross multiply
1,379,539.68x = 1,903,736.57 × 863,578.14 - Step 4: Simplify right side
1,379,539.68x = 1,644,025,281,852.69 - Step 5: Solve for x
x = 1,644,025,281,852.69/1,379,539.68 - Step 6: Final answer
x = 1,191,720.18
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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.