Finding the Fourth Proportional to 478,944.81, 661,039.61 and 275,135.49
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Solution
The fourth proportional to 478,944.81, 661,039.61 and 275,135.49 is: 379,741.99
Step by Step Solution
- Step 1: Write the proportion equation
478,944.81 : 661,039.61 = 275,135.49 : x - Step 2: Convert to fraction form
478,944.81/661,039.61 = 275,135.49/x - Step 3: Cross multiply
478,944.81x = 661,039.61 × 275,135.49 - Step 4: Simplify right side
478,944.81x = 181,875,455,631.08 - Step 5: Solve for x
x = 181,875,455,631.08/478,944.81 - Step 6: Final answer
x = 379,741.99
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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.