Finding the Fourth Proportional to 784,137.36, 1,083,580.56 and 640,845.12
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Solution
The fourth proportional to 784,137.36, 1,083,580.56 and 640,845.12 is: 885,568.46
Step by Step Solution
- Step 1: Write the proportion equation
784,137.36 : 1,083,580.56 = 640,845.12 : x - Step 2: Convert to fraction form
784,137.36/1,083,580.56 = 640,845.12/x - Step 3: Cross multiply
784,137.36x = 1,083,580.56 × 640,845.12 - Step 4: Simplify right side
784,137.36x = 694,407,314,002.87 - Step 5: Solve for x
x = 694,407,314,002.87/784,137.36 - Step 6: Final answer
x = 885,568.46
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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.