Finding the Fourth Proportional to 2,489,416.80, 3,734,125.20 and 806,690.40
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Solution
The fourth proportional to 2,489,416.80, 3,734,125.20 and 806,690.40 is: 1,210,035.60
Step by Step Solution
- Step 1: Write the proportion equation
2,489,416.80 : 3,734,125.20 = 806,690.40 : x - Step 2: Convert to fraction form
2,489,416.80/3,734,125.20 = 806,690.40/x - Step 3: Cross multiply
2,489,416.80x = 3,734,125.20 × 806,690.40 - Step 4: Simplify right side
2,489,416.80x = 3,012,282,951,238.08 - Step 5: Solve for x
x = 3,012,282,951,238.08/2,489,416.80 - Step 6: Final answer
x = 1,210,035.60
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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.