Finding the Fourth Proportional to 519,785.24, 717,309.61 and 304,928.96
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Solution
The fourth proportional to 519,785.24, 717,309.61 and 304,928.96 is: 420,805.47
Step by Step Solution
- Step 1: Write the proportion equation
519,785.24 : 717,309.61 = 304,928.96 : x - Step 2: Convert to fraction form
519,785.24/717,309.61 = 304,928.96/x - Step 3: Cross multiply
519,785.24x = 717,309.61 × 304,928.96 - Step 4: Simplify right side
519,785.24x = 218,728,469,026.44 - Step 5: Solve for x
x = 218,728,469,026.44/519,785.24 - Step 6: Final answer
x = 420,805.47
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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.