Finding the Fourth Proportional to 1,235,362.40, 1,851,661.20 and 703,138.40
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Solution
The fourth proportional to 1,235,362.40, 1,851,661.20 and 703,138.40 is: 1,053,920.77
Step by Step Solution
- Step 1: Write the proportion equation
1,235,362.40 : 1,851,661.20 = 703,138.40 : x - Step 2: Convert to fraction form
1,235,362.40/1,851,661.20 = 703,138.40/x - Step 3: Cross multiply
1,235,362.40x = 1,851,661.20 × 703,138.40 - Step 4: Simplify right side
1,235,362.40x = 1,301,974,093,510.08 - Step 5: Solve for x
x = 1,301,974,093,510.08/1,235,362.40 - Step 6: Final answer
x = 1,053,920.77
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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.