Finding the Fourth Proportional to 1,431,979.41, 1,975,639.84 and 887,919.42
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Solution
The fourth proportional to 1,431,979.41, 1,975,639.84 and 887,919.42 is: 1,225,023.89
Step by Step Solution
- Step 1: Write the proportion equation
1,431,979.41 : 1,975,639.84 = 887,919.42 : x - Step 2: Convert to fraction form
1,431,979.41/1,975,639.84 = 887,919.42/x - Step 3: Cross multiply
1,431,979.41x = 1,975,639.84 × 887,919.42 - Step 4: Simplify right side
1,431,979.41x = 1,754,208,980,861.69 - Step 5: Solve for x
x = 1,754,208,980,861.69/1,431,979.41 - Step 6: Final answer
x = 1,225,023.89
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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.