Finding the Fourth Proportional to 3,608,782.19, 4,980,119.30 and 1,977,251.36
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Solution
The fourth proportional to 3,608,782.19, 4,980,119.30 and 1,977,251.36 is: 2,728,606.81
Step by Step Solution
- Step 1: Write the proportion equation
3,608,782.19 : 4,980,119.30 = 1,977,251.36 : x - Step 2: Convert to fraction form
3,608,782.19/4,980,119.30 = 1,977,251.36/x - Step 3: Cross multiply
3,608,782.19x = 4,980,119.30 × 1,977,251.36 - Step 4: Simplify right side
3,608,782.19x = 9,846,947,658,887.25 - Step 5: Solve for x
x = 9,846,947,658,887.25/3,608,782.19 - Step 6: Final answer
x = 2,728,606.81
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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.