Finding the Fourth Proportional to 774,408.36, 1,161,670.86 and 213,438
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Solution
The fourth proportional to 774,408.36, 1,161,670.86 and 213,438 is: 320,173.07
Step by Step Solution
- Step 1: Write the proportion equation
774,408.36 : 1,161,670.86 = 213,438 : x - Step 2: Convert to fraction form
774,408.36/1,161,670.86 = 213,438/x - Step 3: Cross multiply
774,408.36x = 1,161,670.86 × 213,438 - Step 4: Simplify right side
774,408.36x = 247,944,705,016.68 - Step 5: Solve for x
x = 247,944,705,016.68/774,408.36 - Step 6: Final answer
x = 320,173.07
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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.