Finding the Fourth Proportional to 479,479.36, 718,996.56 and 279,857.20
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Solution
The fourth proportional to 479,479.36, 718,996.56 and 279,857.20 is: 419,655.95
Step by Step Solution
- Step 1: Write the proportion equation
479,479.36 : 718,996.56 = 279,857.20 : x - Step 2: Convert to fraction form
479,479.36/718,996.56 = 279,857.20/x - Step 3: Cross multiply
479,479.36x = 718,996.56 × 279,857.20 - Step 4: Simplify right side
479,479.36x = 201,216,364,091.23 - Step 5: Solve for x
x = 201,216,364,091.23/479,479.36 - Step 6: Final answer
x = 419,655.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.