Finding the Fourth Proportional to 509,434.41, 764,819.36 and 341,705.18
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Solution
The fourth proportional to 509,434.41, 764,819.36 and 341,705.18 is: 513,005.66
Step by Step Solution
- Step 1: Write the proportion equation
509,434.41 : 764,819.36 = 341,705.18 : x - Step 2: Convert to fraction form
509,434.41/764,819.36 = 341,705.18/x - Step 3: Cross multiply
509,434.41x = 764,819.36 × 341,705.18 - Step 4: Simplify right side
509,434.41x = 261,342,737,076.29 - Step 5: Solve for x
x = 261,342,737,076.29/509,434.41 - Step 6: Final answer
x = 513,005.66
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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.