Finding the Fourth Proportional to 725,261.99, 1,087,635.56 and 212,784.12
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Solution
The fourth proportional to 725,261.99, 1,087,635.56 and 212,784.12 is: 319,100.65
Step by Step Solution
- Step 1: Write the proportion equation
725,261.99 : 1,087,635.56 = 212,784.12 : x - Step 2: Convert to fraction form
725,261.99/1,087,635.56 = 212,784.12/x - Step 3: Cross multiply
725,261.99x = 1,087,635.56 × 212,784.12 - Step 4: Simplify right side
725,261.99x = 231,431,574,451.39 - Step 5: Solve for x
x = 231,431,574,451.39/725,261.99 - Step 6: Final answer
x = 319,100.65
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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.