Finding the Fourth Proportional to 926,201.80, 1,389,302.70 and 261,353.80
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Solution
The fourth proportional to 926,201.80, 1,389,302.70 and 261,353.80 is: 392,030.70
Step by Step Solution
- Step 1: Write the proportion equation
926,201.80 : 1,389,302.70 = 261,353.80 : x - Step 2: Convert to fraction form
926,201.80/1,389,302.70 = 261,353.80/x - Step 3: Cross multiply
926,201.80x = 1,389,302.70 × 261,353.80 - Step 4: Simplify right side
926,201.80x = 363,099,539,995.26 - Step 5: Solve for x
x = 363,099,539,995.26/926,201.80 - Step 6: Final answer
x = 392,030.70
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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.