Finding the Fourth Proportional to 479,480.36, 718,998.06 and 279,858.20
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Solution
The fourth proportional to 479,480.36, 718,998.06 and 279,858.20 is: 419,657.45
Step by Step Solution
- Step 1: Write the proportion equation
479,480.36 : 718,998.06 = 279,858.20 : x - Step 2: Convert to fraction form
479,480.36/718,998.06 = 279,858.20/x - Step 3: Cross multiply
479,480.36x = 718,998.06 × 279,858.20 - Step 4: Simplify right side
479,480.36x = 201,217,502,875.09 - Step 5: Solve for x
x = 201,217,502,875.09/479,480.36 - Step 6: Final answer
x = 419,657.45
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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.