Finding the Fourth Proportional to 682,966.80, 1,025,292.60 and 430,246.80
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Solution
The fourth proportional to 682,966.80, 1,025,292.60 and 430,246.80 is: 645,900.88
Step by Step Solution
- Step 1: Write the proportion equation
682,966.80 : 1,025,292.60 = 430,246.80 : x - Step 2: Convert to fraction form
682,966.80/1,025,292.60 = 430,246.80/x - Step 3: Cross multiply
682,966.80x = 1,025,292.60 × 430,246.80 - Step 4: Simplify right side
682,966.80x = 441,128,860,213.68 - Step 5: Solve for x
x = 441,128,860,213.68/682,966.80 - Step 6: Final answer
x = 645,900.88
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.