Finding the Fourth Proportional to 1,899,136.08, 2,620,388.79 and 1,124,382.21
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Solution
The fourth proportional to 1,899,136.08, 2,620,388.79 and 1,124,382.21 is: 1,551,399.38
Step by Step Solution
- Step 1: Write the proportion equation
1,899,136.08 : 2,620,388.79 = 1,124,382.21 : x - Step 2: Convert to fraction form
1,899,136.08/2,620,388.79 = 1,124,382.21/x - Step 3: Cross multiply
1,899,136.08x = 2,620,388.79 × 1,124,382.21 - Step 4: Simplify right side
1,899,136.08x = 2,946,318,538,759.43 - Step 5: Solve for x
x = 2,946,318,538,759.43/1,899,136.08 - Step 6: Final answer
x = 1,551,399.38
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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.