Finding the Third Proportional to 320,424.19 and 691,509.94
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Solution
The third proportional to 320,424.19 and 691,509.94 is: 1,492,352.99
Step by Step Solution
- Step 1: Write the proportion equation
320,424.19 : 691,509.94 = 691,509.94 : x - Step 2: Convert to fraction form
320,424.19/691,509.94 = 691,509.94/x - Step 3: Cross multiply
320,424.19x = 691,509.94 × 691,509.94 - Step 4: Simplify right side
320,424.19x = 478,185,993,661.25 - Step 5: Solve for x
x = 478,185,993,661.25/320,424.19 - Step 6: Final answer
x = 1,492,352.99
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Why These Related Problems?
These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.