Finding the Fourth Proportional to 2,165,340.18, 2,988,133.20 and 1,198,449.84
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Solution
The fourth proportional to 2,165,340.18, 2,988,133.20 and 1,198,449.84 is: 1,653,840.72
Step by Step Solution
- Step 1: Write the proportion equation
2,165,340.18 : 2,988,133.20 = 1,198,449.84 : x - Step 2: Convert to fraction form
2,165,340.18/2,988,133.20 = 1,198,449.84/x - Step 3: Cross multiply
2,165,340.18x = 2,988,133.20 × 1,198,449.84 - Step 4: Simplify right side
2,165,340.18x = 3,581,127,755,438.69 - Step 5: Solve for x
x = 3,581,127,755,438.69/2,165,340.18 - Step 6: Final answer
x = 1,653,840.72
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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.