Finding the Fourth Proportional to 815,309.94, 1,125,231.48 and 493,022.37
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Solution
The fourth proportional to 815,309.94, 1,125,231.48 and 493,022.37 is: 680,433.62
Step by Step Solution
- Step 1: Write the proportion equation
815,309.94 : 1,125,231.48 = 493,022.37 : x - Step 2: Convert to fraction form
815,309.94/1,125,231.48 = 493,022.37/x - Step 3: Cross multiply
815,309.94x = 1,125,231.48 × 493,022.37 - Step 4: Simplify right side
815,309.94x = 554,764,291,068.21 - Step 5: Solve for x
x = 554,764,291,068.21/815,309.94 - Step 6: Final answer
x = 680,433.62
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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.