Finding the Fourth Proportional to 2,107,861.57, 2,908,850.70 and 1,140,988.87
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Solution
The fourth proportional to 2,107,861.57, 2,908,850.70 and 1,140,988.87 is: 1,574,565.58
Step by Step Solution
- Step 1: Write the proportion equation
2,107,861.57 : 2,908,850.70 = 1,140,988.87 : x - Step 2: Convert to fraction form
2,107,861.57/2,908,850.70 = 1,140,988.87/x - Step 3: Cross multiply
2,107,861.57x = 2,908,850.70 × 1,140,988.87 - Step 4: Simplify right side
2,107,861.57x = 3,318,966,273,191.71 - Step 5: Solve for x
x = 3,318,966,273,191.71/2,107,861.57 - Step 6: Final answer
x = 1,574,565.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.