Finding the Fourth Proportional to 978,856.99, 1,350,802.28 and 543,249.05
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Solution
The fourth proportional to 978,856.99, 1,350,802.28 and 543,249.05 is: 749,672.38
Step by Step Solution
- Step 1: Write the proportion equation
978,856.99 : 1,350,802.28 = 543,249.05 : x - Step 2: Convert to fraction form
978,856.99/1,350,802.28 = 543,249.05/x - Step 3: Cross multiply
978,856.99x = 1,350,802.28 × 543,249.05 - Step 4: Simplify right side
978,856.99x = 733,822,049,951.95 - Step 5: Solve for x
x = 733,822,049,951.95/978,856.99 - Step 6: Final answer
x = 749,672.38
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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.