Finding the Fourth Proportional to 2,107,861.32, 2,908,850.36 and 1,140,988.62
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Solution
The fourth proportional to 2,107,861.32, 2,908,850.36 and 1,140,988.62 is: 1,574,565.23
Step by Step Solution
- Step 1: Write the proportion equation
2,107,861.32 : 2,908,850.36 = 1,140,988.62 : x - Step 2: Convert to fraction form
2,107,861.32/2,908,850.36 = 1,140,988.62/x - Step 3: Cross multiply
2,107,861.32x = 2,908,850.36 × 1,140,988.62 - Step 4: Simplify right side
2,107,861.32x = 3,318,965,152,337.96 - Step 5: Solve for x
x = 3,318,965,152,337.96/2,107,861.32 - Step 6: Final answer
x = 1,574,565.23
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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.