Finding the Fourth Proportional to 385,599.76, 578,484.24 and 115,716.40
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Solution
The fourth proportional to 385,599.76, 578,484.24 and 115,716.40 is: 173,599.99
Step by Step Solution
- Step 1: Write the proportion equation
385,599.76 : 578,484.24 = 115,716.40 : x - Step 2: Convert to fraction form
385,599.76/578,484.24 = 115,716.40/x - Step 3: Cross multiply
385,599.76x = 578,484.24 × 115,716.40 - Step 4: Simplify right side
385,599.76x = 66,940,113,709.54 - Step 5: Solve for x
x = 66,940,113,709.54/385,599.76 - Step 6: Final answer
x = 173,599.99
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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.