Finding the Fourth Proportional to 726,138.74, 1,089,023.12 and 514,890.96
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Solution
The fourth proportional to 726,138.74, 1,089,023.12 and 514,890.96 is: 772,205.27
Step by Step Solution
- Step 1: Write the proportion equation
726,138.74 : 1,089,023.12 = 514,890.96 : x - Step 2: Convert to fraction form
726,138.74/1,089,023.12 = 514,890.96/x - Step 3: Cross multiply
726,138.74x = 1,089,023.12 × 514,890.96 - Step 4: Simplify right side
726,138.74x = 560,728,159,719.00 - Step 5: Solve for x
x = 560,728,159,719.00/726,138.74 - Step 6: Final answer
x = 772,205.27
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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.