Finding the Fourth Proportional to 3,128,169.12, 4,692,335.68 and 998,251.18
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Solution
The fourth proportional to 3,128,169.12, 4,692,335.68 and 998,251.18 is: 1,497,402.94
Step by Step Solution
- Step 1: Write the proportion equation
3,128,169.12 : 4,692,335.68 = 998,251.18 : x - Step 2: Convert to fraction form
3,128,169.12/4,692,335.68 = 998,251.18/x - Step 3: Cross multiply
3,128,169.12x = 4,692,335.68 × 998,251.18 - Step 4: Simplify right side
3,128,169.12x = 4,684,129,629,516.10 - Step 5: Solve for x
x = 4,684,129,629,516.10/3,128,169.12 - Step 6: Final answer
x = 1,497,402.94
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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.