Finding the Fourth Proportional to 2,128,515.56, 3,192,656.70 and 1,286,841.32
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Solution
The fourth proportional to 2,128,515.56, 3,192,656.70 and 1,286,841.32 is: 1,930,191.46
Step by Step Solution
- Step 1: Write the proportion equation
2,128,515.56 : 3,192,656.70 = 1,286,841.32 : x - Step 2: Convert to fraction form
2,128,515.56/3,192,656.70 = 1,286,841.32/x - Step 3: Cross multiply
2,128,515.56x = 3,192,656.70 × 1,286,841.32 - Step 4: Simplify right side
2,128,515.56x = 4,108,442,562,134.84 - Step 5: Solve for x
x = 4,108,442,562,134.84/2,128,515.56 - Step 6: Final answer
x = 1,930,191.46
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.