Finding the Fourth Proportional to 782,132.36, 1,172,903.27 and 361,112.99
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Solution
The fourth proportional to 782,132.36, 1,172,903.27 and 361,112.99 is: 541,533.15
Step by Step Solution
- Step 1: Write the proportion equation
782,132.36 : 1,172,903.27 = 361,112.99 : x - Step 2: Convert to fraction form
782,132.36/1,172,903.27 = 361,112.99/x - Step 3: Cross multiply
782,132.36x = 1,172,903.27 × 361,112.99 - Step 4: Simplify right side
782,132.36x = 423,550,601,171.66 - Step 5: Solve for x
x = 423,550,601,171.66/782,132.36 - Step 6: Final answer
x = 541,533.15
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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.