Finding the Fourth Proportional to 748,036.99, 1,122,213.13 and 242,558.58
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Solution
The fourth proportional to 748,036.99, 1,122,213.13 and 242,558.58 is: 363,888.99
Step by Step Solution
- Step 1: Write the proportion equation
748,036.99 : 1,122,213.13 = 242,558.58 : x - Step 2: Convert to fraction form
748,036.99/1,122,213.13 = 242,558.58/x - Step 3: Cross multiply
748,036.99x = 1,122,213.13 × 242,558.58 - Step 4: Simplify right side
748,036.99x = 272,202,422,057.36 - Step 5: Solve for x
x = 272,202,422,057.36/748,036.99 - Step 6: Final answer
x = 363,888.99
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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.