Finding the Fourth Proportional to 786,045.99, 1,179,318.21 and 280,596.14
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Solution
The fourth proportional to 786,045.99, 1,179,318.21 and 280,596.14 is: 420,983.17
Step by Step Solution
- Step 1: Write the proportion equation
786,045.99 : 1,179,318.21 = 280,596.14 : x - Step 2: Convert to fraction form
786,045.99/1,179,318.21 = 280,596.14/x - Step 3: Cross multiply
786,045.99x = 1,179,318.21 × 280,596.14 - Step 4: Simplify right side
786,045.99x = 330,912,131,661.12 - Step 5: Solve for x
x = 330,912,131,661.12/786,045.99 - Step 6: Final answer
x = 420,983.17
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1.5x scale
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.