Finding the Fourth Proportional to 509,005.11, 762,982.79 and 228,719.19
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Solution
The fourth proportional to 509,005.11, 762,982.79 and 228,719.19 is: 342,842.94
Step by Step Solution
- Step 1: Write the proportion equation
509,005.11 : 762,982.79 = 228,719.19 : x - Step 2: Convert to fraction form
509,005.11/762,982.79 = 228,719.19/x - Step 3: Cross multiply
509,005.11x = 762,982.79 × 228,719.19 - Step 4: Simplify right side
509,005.11x = 174,508,808,716.88 - Step 5: Solve for x
x = 174,508,808,716.88/509,005.11 - Step 6: Final answer
x = 342,842.94
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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.