Finding the Fourth Proportional to 450,988.81, 622,128.61 and 278,851.75
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Solution
The fourth proportional to 450,988.81, 622,128.61 and 278,851.75 is: 384,669.52
Step by Step Solution
- Step 1: Write the proportion equation
450,988.81 : 622,128.61 = 278,851.75 : x - Step 2: Convert to fraction form
450,988.81/622,128.61 = 278,851.75/x - Step 3: Cross multiply
450,988.81x = 622,128.61 × 278,851.75 - Step 4: Simplify right side
450,988.81x = 173,481,651,784.63 - Step 5: Solve for x
x = 173,481,651,784.63/450,988.81 - Step 6: Final answer
x = 384,669.52
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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.