Finding the Fourth Proportional to 928,757.92, 1,392,670.24 and 430,471.84
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Solution
The fourth proportional to 928,757.92, 1,392,670.24 and 430,471.84 is: 645,491.48
Step by Step Solution
- Step 1: Write the proportion equation
928,757.92 : 1,392,670.24 = 430,471.84 : x - Step 2: Convert to fraction form
928,757.92/1,392,670.24 = 430,471.84/x - Step 3: Cross multiply
928,757.92x = 1,392,670.24 × 430,471.84 - Step 4: Simplify right side
928,757.92x = 599,505,320,726.04 - Step 5: Solve for x
x = 599,505,320,726.04/928,757.92 - Step 6: Final answer
x = 645,491.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.