Finding the Fourth Proportional to 766,145.99, 1,057,121.08 and 443,836.87
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Solution
The fourth proportional to 766,145.99, 1,057,121.08 and 443,836.87 is: 612,401.96
Step by Step Solution
- Step 1: Write the proportion equation
766,145.99 : 1,057,121.08 = 443,836.87 : x - Step 2: Convert to fraction form
766,145.99/1,057,121.08 = 443,836.87/x - Step 3: Cross multiply
766,145.99x = 1,057,121.08 × 443,836.87 - Step 4: Simplify right side
766,145.99x = 469,189,307,605.83 - Step 5: Solve for x
x = 469,189,307,605.83/766,145.99 - Step 6: Final answer
x = 612,401.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.