Finding the Fourth Proportional to 2,154,731.42, 2,973,549.48 and 1,187,896.44
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Solution
The fourth proportional to 2,154,731.42, 2,973,549.48 and 1,187,896.44 is: 1,639,308.18
Step by Step Solution
- Step 1: Write the proportion equation
2,154,731.42 : 2,973,549.48 = 1,187,896.44 : x - Step 2: Convert to fraction form
2,154,731.42/2,973,549.48 = 1,187,896.44/x - Step 3: Cross multiply
2,154,731.42x = 2,973,549.48 × 1,187,896.44 - Step 4: Simplify right side
2,154,731.42x = 3,532,268,841,455.85 - Step 5: Solve for x
x = 3,532,268,841,455.85/2,154,731.42 - Step 6: Final answer
x = 1,639,308.18
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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.