Finding the Fourth Proportional to 591,201.53, 815,858.09 and 319,269.43
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Solution
The fourth proportional to 591,201.53, 815,858.09 and 319,269.43 is: 440,591.80
Step by Step Solution
- Step 1: Write the proportion equation
591,201.53 : 815,858.09 = 319,269.43 : x - Step 2: Convert to fraction form
591,201.53/815,858.09 = 319,269.43/x - Step 3: Cross multiply
591,201.53x = 815,858.09 × 319,269.43 - Step 4: Simplify right side
591,201.53x = 260,478,547,975.93 - Step 5: Solve for x
x = 260,478,547,975.93/591,201.53 - Step 6: Final answer
x = 440,591.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.