Finding the Fourth Proportional to 979,030.26, 1,350,990.90 and 543,471.12
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Solution
The fourth proportional to 979,030.26, 1,350,990.90 and 543,471.12 is: 749,950.81
Step by Step Solution
- Step 1: Write the proportion equation
979,030.26 : 1,350,990.90 = 543,471.12 : x - Step 2: Convert to fraction form
979,030.26/1,350,990.90 = 543,471.12/x - Step 3: Cross multiply
979,030.26x = 1,350,990.90 × 543,471.12 - Step 4: Simplify right side
979,030.26x = 734,224,537,532.81 - Step 5: Solve for x
x = 734,224,537,532.81/979,030.26 - Step 6: Final answer
x = 749,950.81
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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.