Finding the Fourth Proportional to 509,153.72, 763,828.92 and 193,586.09
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Solution
The fourth proportional to 509,153.72, 763,828.92 and 193,586.09 is: 290,416.52
Step by Step Solution
- Step 1: Write the proportion equation
509,153.72 : 763,828.92 = 193,586.09 : x - Step 2: Convert to fraction form
509,153.72/763,828.92 = 193,586.09/x - Step 3: Cross multiply
509,153.72x = 763,828.92 × 193,586.09 - Step 4: Simplify right side
509,153.72x = 147,866,650,232.58 - Step 5: Solve for x
x = 147,866,650,232.58/509,153.72 - Step 6: Final answer
x = 290,416.52
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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.