Finding the Fourth Proportional to 2,128,204.53, 2,936,984.57 and 1,161,397.12
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Solution
The fourth proportional to 2,128,204.53, 2,936,984.57 and 1,161,397.12 is: 1,602,762.03
Step by Step Solution
- Step 1: Write the proportion equation
2,128,204.53 : 2,936,984.57 = 1,161,397.12 : x - Step 2: Convert to fraction form
2,128,204.53/2,936,984.57 = 1,161,397.12/x - Step 3: Cross multiply
2,128,204.53x = 2,936,984.57 × 1,161,397.12 - Step 4: Simplify right side
2,128,204.53x = 3,411,005,421,082.44 - Step 5: Solve for x
x = 3,411,005,421,082.44/2,128,204.53 - Step 6: Final answer
x = 1,602,762.03
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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.