Finding the Fourth Proportional to 2,918,405.81, 4,027,439.84 and 1,611,745.98
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Solution
The fourth proportional to 2,918,405.81, 4,027,439.84 and 1,611,745.98 is: 2,224,231.45
Step by Step Solution
- Step 1: Write the proportion equation
2,918,405.81 : 4,027,439.84 = 1,611,745.98 : x - Step 2: Convert to fraction form
2,918,405.81/4,027,439.84 = 1,611,745.98/x - Step 3: Cross multiply
2,918,405.81x = 4,027,439.84 × 1,611,745.98 - Step 4: Simplify right side
2,918,405.81x = 6,491,209,963,753.11 - Step 5: Solve for x
x = 6,491,209,963,753.11/2,918,405.81 - Step 6: Final answer
x = 2,224,231.45
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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.