Finding the Fourth Proportional to 478,848.70, 718,273.05 and 419,799.70
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Solution
The fourth proportional to 478,848.70, 718,273.05 and 419,799.70 is: 629,699.55
Step by Step Solution
- Step 1: Write the proportion equation
478,848.70 : 718,273.05 = 419,799.70 : x - Step 2: Convert to fraction form
478,848.70/718,273.05 = 419,799.70/x - Step 3: Cross multiply
478,848.70x = 718,273.05 × 419,799.70 - Step 4: Simplify right side
478,848.70x = 301,530,810,908.09 - Step 5: Solve for x
x = 301,530,810,908.09/478,848.70 - Step 6: Final answer
x = 629,699.55
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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.