Finding the Fourth Proportional to 478,745.74, 718,282.67 and 163,424.08
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Solution
The fourth proportional to 478,745.74, 718,282.67 and 163,424.08 is: 245,192.12
Step by Step Solution
- Step 1: Write the proportion equation
478,745.74 : 718,282.67 = 163,424.08 : x - Step 2: Convert to fraction form
478,745.74/718,282.67 = 163,424.08/x - Step 3: Cross multiply
478,745.74x = 718,282.67 × 163,424.08 - Step 4: Simplify right side
478,745.74x = 117,384,684,524.69 - Step 5: Solve for x
x = 117,384,684,524.69/478,745.74 - Step 6: Final answer
x = 245,192.12
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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.