Finding the Fourth Proportional to 1,543,438.99, 2,315,245.96 and 478,632.43
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Solution
The fourth proportional to 1,543,438.99, 2,315,245.96 and 478,632.43 is: 717,975.77
Step by Step Solution
- Step 1: Write the proportion equation
1,543,438.99 : 2,315,245.96 = 478,632.43 : x - Step 2: Convert to fraction form
1,543,438.99/2,315,245.96 = 478,632.43/x - Step 3: Cross multiply
1,543,438.99x = 2,315,245.96 × 478,632.43 - Step 4: Simplify right side
1,543,438.99x = 1,108,151,794,692.66 - Step 5: Solve for x
x = 1,108,151,794,692.66/1,543,438.99 - Step 6: Final answer
x = 717,975.77
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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.