Finding the Fourth Proportional to 3,927,858.68, 5,420,359.86 and 2,274,075.56
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Solution
The fourth proportional to 3,927,858.68, 5,420,359.86 and 2,274,075.56 is: 3,138,174.99
Step by Step Solution
- Step 1: Write the proportion equation
3,927,858.68 : 5,420,359.86 = 2,274,075.56 : x - Step 2: Convert to fraction form
3,927,858.68/5,420,359.86 = 2,274,075.56/x - Step 3: Cross multiply
3,927,858.68x = 5,420,359.86 × 2,274,075.56 - Step 4: Simplify right side
3,927,858.68x = 12,326,307,884,031.02 - Step 5: Solve for x
x = 12,326,307,884,031.02/3,927,858.68 - Step 6: Final answer
x = 3,138,174.99
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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.