Finding the Fourth Proportional to 2,138,442.96, 2,951,026.64 and 1,158,363.26
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Solution
The fourth proportional to 2,138,442.96, 2,951,026.64 and 1,158,363.26 is: 1,598,527.95
Step by Step Solution
- Step 1: Write the proportion equation
2,138,442.96 : 2,951,026.64 = 1,158,363.26 : x - Step 2: Convert to fraction form
2,138,442.96/2,951,026.64 = 1,158,363.26/x - Step 3: Cross multiply
2,138,442.96x = 2,951,026.64 × 1,158,363.26 - Step 4: Simplify right side
2,138,442.96x = 3,418,360,839,057.25 - Step 5: Solve for x
x = 3,418,360,839,057.25/2,138,442.96 - Step 6: Final answer
x = 1,598,527.95
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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.