Finding the Fourth Proportional to 1,218,964.95, 1,826,765.87 and 919,115.98
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Solution
The fourth proportional to 1,218,964.95, 1,826,765.87 and 919,115.98 is: 1,377,406.05
Step by Step Solution
- Step 1: Write the proportion equation
1,218,964.95 : 1,826,765.87 = 919,115.98 : x - Step 2: Convert to fraction form
1,218,964.95/1,826,765.87 = 919,115.98/x - Step 3: Cross multiply
1,218,964.95x = 1,826,765.87 × 919,115.98 - Step 4: Simplify right side
1,218,964.95x = 1,679,009,693,673.11 - Step 5: Solve for x
x = 1,679,009,693,673.11/1,218,964.95 - Step 6: Final answer
x = 1,377,406.05
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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.