Finding the Fourth Proportional to 396,371.57, 546,237.64 and 389,084.08
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Solution
The fourth proportional to 396,371.57, 546,237.64 and 389,084.08 is: 536,194.79
Step by Step Solution
- Step 1: Write the proportion equation
396,371.57 : 546,237.64 = 389,084.08 : x - Step 2: Convert to fraction form
396,371.57/546,237.64 = 389,084.08/x - Step 3: Cross multiply
396,371.57x = 546,237.64 × 389,084.08 - Step 4: Simplify right side
396,371.57x = 212,532,369,620.77 - Step 5: Solve for x
x = 212,532,369,620.77/396,371.57 - Step 6: Final answer
x = 536,194.79
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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.