Finding the Fourth Proportional to 793,602.80, 1,190,161.20 and 261,000.80
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Solution
The fourth proportional to 793,602.80, 1,190,161.20 and 261,000.80 is: 391,421.28
Step by Step Solution
- Step 1: Write the proportion equation
793,602.80 : 1,190,161.20 = 261,000.80 : x - Step 2: Convert to fraction form
793,602.80/1,190,161.20 = 261,000.80/x - Step 3: Cross multiply
793,602.80x = 1,190,161.20 × 261,000.80 - Step 4: Simplify right side
793,602.80x = 310,633,025,328.96 - Step 5: Solve for x
x = 310,633,025,328.96/793,602.80 - Step 6: Final answer
x = 391,421.28
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1.5x scale
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.