Finding the Fourth Proportional to 1,178,120.91, 1,625,938.81 and 713,231.02
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Solution
The fourth proportional to 1,178,120.91, 1,625,938.81 and 713,231.02 is: 984,338.70
Step by Step Solution
- Step 1: Write the proportion equation
1,178,120.91 : 1,625,938.81 = 713,231.02 : x - Step 2: Convert to fraction form
1,178,120.91/1,625,938.81 = 713,231.02/x - Step 3: Cross multiply
1,178,120.91x = 1,625,938.81 × 713,231.02 - Step 4: Simplify right side
1,178,120.91x = 1,159,669,999,978.73 - Step 5: Solve for x
x = 1,159,669,999,978.73/1,178,120.91 - Step 6: Final answer
x = 984,338.70
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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.