Finding the Fourth Proportional to 493,128.10, 739,716.45 and 256,932.10
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Solution
The fourth proportional to 493,128.10, 739,716.45 and 256,932.10 is: 385,410.81
Step by Step Solution
- Step 1: Write the proportion equation
493,128.10 : 739,716.45 = 256,932.10 : x - Step 2: Convert to fraction form
493,128.10/739,716.45 = 256,932.10/x - Step 3: Cross multiply
493,128.10x = 739,716.45 × 256,932.10 - Step 4: Simplify right side
493,128.10x = 190,056,900,903.05 - Step 5: Solve for x
x = 190,056,900,903.05/493,128.10 - Step 6: Final answer
x = 385,410.81
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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.