Finding the Fourth Proportional to 538,923.92, 743,702.68 and 297,199.60
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Solution
The fourth proportional to 538,923.92, 743,702.68 and 297,199.60 is: 410,128.65
Step by Step Solution
- Step 1: Write the proportion equation
538,923.92 : 743,702.68 = 297,199.60 : x - Step 2: Convert to fraction form
538,923.92/743,702.68 = 297,199.60/x - Step 3: Cross multiply
538,923.92x = 743,702.68 × 297,199.60 - Step 4: Simplify right side
538,923.92x = 221,028,139,014.93 - Step 5: Solve for x
x = 221,028,139,014.93/538,923.92 - Step 6: Final answer
x = 410,128.65
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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.