Finding the Fourth Proportional to 1,292,121.84, 1,783,110.26 and 719,162.20
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Solution
The fourth proportional to 1,292,121.84, 1,783,110.26 and 719,162.20 is: 992,433.88
Step by Step Solution
- Step 1: Write the proportion equation
1,292,121.84 : 1,783,110.26 = 719,162.20 : x - Step 2: Convert to fraction form
1,292,121.84/1,783,110.26 = 719,162.20/x - Step 3: Cross multiply
1,292,121.84x = 1,783,110.26 × 719,162.20 - Step 4: Simplify right side
1,292,121.84x = 1,282,345,497,424.17 - Step 5: Solve for x
x = 1,282,345,497,424.17/1,292,121.84 - Step 6: Final answer
x = 992,433.88
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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.