Finding the Fourth Proportional to 2,128,394.92, 3,192,503.28 and 990,766.12
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Solution
The fourth proportional to 2,128,394.92, 3,192,503.28 and 990,766.12 is: 1,486,107.70
Step by Step Solution
- Step 1: Write the proportion equation
2,128,394.92 : 3,192,503.28 = 990,766.12 : x - Step 2: Convert to fraction form
2,128,394.92/3,192,503.28 = 990,766.12/x - Step 3: Cross multiply
2,128,394.92x = 3,192,503.28 × 990,766.12 - Step 4: Simplify right side
2,128,394.92x = 3,163,024,087,812.87 - Step 5: Solve for x
x = 3,163,024,087,812.87/2,128,394.92 - Step 6: Final answer
x = 1,486,107.70
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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.