Finding the Fourth Proportional to 2,818,639.88, 4,228,605.66 and 1,221,471.08
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Solution
The fourth proportional to 2,818,639.88, 4,228,605.66 and 1,221,471.08 is: 1,832,486.50
Step by Step Solution
- Step 1: Write the proportion equation
2,818,639.88 : 4,228,605.66 = 1,221,471.08 : x - Step 2: Convert to fraction form
2,818,639.88/4,228,605.66 = 1,221,471.08/x - Step 3: Cross multiply
2,818,639.88x = 4,228,605.66 × 1,221,471.08 - Step 4: Simplify right side
2,818,639.88x = 5,165,119,522,414.31 - Step 5: Solve for x
x = 5,165,119,522,414.31/2,818,639.88 - Step 6: Final answer
x = 1,832,486.50
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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.