Finding the Fourth Proportional to 2,163,775.36, 2,985,004.56 and 1,400,075.68
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Solution
The fourth proportional to 2,163,775.36, 2,985,004.56 and 1,400,075.68 is: 1,931,453.87
Step by Step Solution
- Step 1: Write the proportion equation
2,163,775.36 : 2,985,004.56 = 1,400,075.68 : x - Step 2: Convert to fraction form
2,163,775.36/2,985,004.56 = 1,400,075.68/x - Step 3: Cross multiply
2,163,775.36x = 2,985,004.56 × 1,400,075.68 - Step 4: Simplify right side
2,163,775.36x = 4,179,232,289,145.10 - Step 5: Solve for x
x = 4,179,232,289,145.10/2,163,775.36 - Step 6: Final answer
x = 1,931,453.87
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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.