Finding the Fourth Proportional to 1,289,867.49, 1,934,844.84 and 343,239.12
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Solution
The fourth proportional to 1,289,867.49, 1,934,844.84 and 343,239.12 is: 514,870.28
Step by Step Solution
- Step 1: Write the proportion equation
1,289,867.49 : 1,934,844.84 = 343,239.12 : x - Step 2: Convert to fraction form
1,289,867.49/1,934,844.84 = 343,239.12/x - Step 3: Cross multiply
1,289,867.49x = 1,934,844.84 × 343,239.12 - Step 4: Simplify right side
1,289,867.49x = 664,114,440,218.14 - Step 5: Solve for x
x = 664,114,440,218.14/1,289,867.49 - Step 6: Final answer
x = 514,870.28
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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.