Finding the Fourth Proportional to 1,972,850.92, 2,722,479.12 and 1,113,491.14
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Solution
The fourth proportional to 1,972,850.92, 2,722,479.12 and 1,113,491.14 is: 1,536,586.64
Step by Step Solution
- Step 1: Write the proportion equation
1,972,850.92 : 2,722,479.12 = 1,113,491.14 : x - Step 2: Convert to fraction form
1,972,850.92/2,722,479.12 = 1,113,491.14/x - Step 3: Cross multiply
1,972,850.92x = 2,722,479.12 × 1,113,491.14 - Step 4: Simplify right side
1,972,850.92x = 3,031,456,372,148.80 - Step 5: Solve for x
x = 3,031,456,372,148.80/1,972,850.92 - Step 6: Final answer
x = 1,536,586.64
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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.