Finding the Fourth Proportional to 1,182,378.18, 1,631,947.66 and 774,242.98
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Solution
The fourth proportional to 1,182,378.18, 1,631,947.66 and 774,242.98 is: 1,068,629.34
Step by Step Solution
- Step 1: Write the proportion equation
1,182,378.18 : 1,631,947.66 = 774,242.98 : x - Step 2: Convert to fraction form
1,182,378.18/1,631,947.66 = 774,242.98/x - Step 3: Cross multiply
1,182,378.18x = 1,631,947.66 × 774,242.98 - Step 4: Simplify right side
1,182,378.18x = 1,263,524,019,482.43 - Step 5: Solve for x
x = 1,263,524,019,482.43/1,182,378.18 - Step 6: Final answer
x = 1,068,629.34
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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.