Finding the Fourth Proportional to 2,798,416.40, 3,861,516.87 and 1,574,700.60
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Solution
The fourth proportional to 2,798,416.40, 3,861,516.87 and 1,574,700.60 is: 2,172,919.27
Step by Step Solution
- Step 1: Write the proportion equation
2,798,416.40 : 3,861,516.87 = 1,574,700.60 : x - Step 2: Convert to fraction form
2,798,416.40/3,861,516.87 = 1,574,700.60/x - Step 3: Cross multiply
2,798,416.40x = 3,861,516.87 × 1,574,700.60 - Step 4: Simplify right side
2,798,416.40x = 6,080,732,929,287.78 - Step 5: Solve for x
x = 6,080,732,929,287.78/2,798,416.40 - Step 6: Final answer
x = 2,172,919.27
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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.